# area of a rectangle, i think?

40,204 results

### Math

The first question is this: Helen designs a rectangle with an area of 225 square units. Her rectangle is the largest rectangle (that is, with largest area) with whole-number side lengths that can be made from the perimeter of the rectangle. A. Whay are the length and width of ...

### Math

There are two rectangles that are similar. One rectangle has an area of 24 and the other has an area of 15 how do you find the ratio of the area of the first rectangle to the area of the second rectangle?

### math

a rectangle is twice as long as it is wide. if both of its dimensions are increased by 4m, its area is increased by 88m^2 find the dimensions of the original rectangle Original rectangle = w for width and 2w for length. Area = w x 2w Larger rectangle = w+4 for width and 2w+4 ...

### Algebra

Please help with the below question. I think my answer is correct but not sure. The area of a rectangle can be found using the formula A=lw. The length of the rectangle is 14a6^b7^c13^ and the width of the rectangle is (7a9^b-3^c18^)2^ What expression represents the area of ...

### geometry

rectangle a is similar to smaller rectangle b. the scale factor is 5/3. if the area of rectangle a is 150 square inches, what is the area of rectangle b?

### Math

If the length of a rectangle is (2x-1)cm and its width is (x+3)cm. How do i write an expression in the form ax^2+bx+c for the area of the rectangle? Given that the area of the rectangle is 294cm^2, determine the value of x and state the dimensions of the rectangle in cms?? ...

### math

Suppose the area of a rectangle is 36 square inches. Find the Minimum perimeter for a rectangle with this area. Please help asap. Thank you! (so much) We know that A=l*w=36 and P=2(l+w) From the area formula we see that l=36/w Putting this into the perimeter formula we get P=2...

### Algebra

A rectangle has dimensions in feet as shown in the figure it is 2x +5 And one side is 8. I need to write an expression for the area of the rectangle. B. Find the area of the rectangle, in sq.ft. if x=3 C. Find the value of x if the area of the rectangle is 160 square feet.

### Algebra

Top of the rectangle is 2x+5 right hand side is 5. Write an expression for the area of the rectangle. Then find the area of the rectangle in square feet if x=3. Then I need to find the value of x if the area of the rectangle is 1y0 square ft. Help!!

### Math

A mechanical engineering student wishes to inscribe a rectangle in a quarter circle of radius 2.00 cm. Determine the dimensions of the rectangle that will give it the greatest area. length in cm = height in cm = My attempt on find the relationship between the rectangle and the...

### Pre-Algebra

A rectange has dimensions of 1 and 6. Another rectangle was drawn from it using a scale factor of 1.5. A. The area of the large rectangle is how many times the area of the small rectangle? B. The perimter of the large rectangle is how many times the perimeter of the small ...

### calculus

Given the area of a rectangle is A = bh, and assuming the rectangle is open on one side, perimeter b + 2h = 40, what formula will maximize the area of the rectangle

### Calculus

Given the area of a rectangle is A = LW. If three sides of the rectangle are fixed, I.e. 2W + L = 40, find L and W such that you maximize the area of the rectangle. Is it L=10, W=20?

### Algebra

The length of a rectangle is (x+2) inches. The width of the rectangle is (x+1) inches. Write an equation that can be used to determine the area (A) of the rectangle in terms of x. What is the value of x if the area of the rectangle is 56 square inches?

### math

A rectange has dimensions of 1 and 6. Another rectangle was drawn from it using a scale factor of 1.5. A. The area of the large rectangle is how many times the area of the small rectangle? B. The perimter of the large rectangle is how many times the perimeter of the small ...

### math

4. the area of a rectangle is 450 m^2. both the length and width of the rectangle are increased by 10%. what is the area of the new rectangle?

### 9th grade polynomials

How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.

### Geometry

If a rectangle width is increased by 3, the rectangle becomes a square and the area of the rectangle is increased by 54u^2 what is the area of the original rectangle

### coordinate algebra

The area of a rectangle is found by multiplying the length by the width: A = lw. A certain rectangle has an area of x2 + 7x + 12. Factor the trinomial to find the length and width of the rectangle. In the form of a paragraph, describe the process necessary to factor the area ...

### Math

The length of rectangle A is 1/3 the length of rectangle B.The width of rectangle A is twice the width of rectangle B.Find the ratio of the area of rectangle A to the area of rectangle B.

### Math

Felic built a 4 inch by 8 inch rectangle. A. What is the perimeter of felic's rectangle? My answer is 24 in. B. The perimeter of hanas' rectangle is 2/3 as long as the perimeter of felic's. What is the perimeter of hana's rectangle? My answer is 16 in. C. What is the area of ...

### maths

the length of a rectangle is 4 times than its width. the area of the rectangle is 1024cm2 find the length of the rectangle the perimeter of the rectangle 4 square has the same perieter as that its rectangle. Find the area of the square.

### math

The leng of the smaller rectangle is 1 inch less than twice its wide. both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. the area of the shaded region is 86 square inches. what is the area of the smaller rectangle?

### Math help another

Find the area of the composite figure. Square with missing top corner. 12in prarel to 10in top 14in bottom 20in. All of little boxes on the three showm corners. I did this. Find area of rectangle A= lxw 14 x 12 = 168 in. Find triangle area A = 1/2 x b xh A= 1/2 x 12 x 10 = 60 ...

### 5th grade

For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?

### derivatives

Applications of derivatives A rectangle has its base on the x axis and its upper two vertices on the parabola y=12 - x^2. What is the largest area the rectangle can have, and what are its dimensions. Support your answer graphically. Thanks. Well, the parabola is symettric ...

### Nassau

The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. The area of the shaded region is 86 square inches. What is the area of the larger rectangle?

### MATH OMG HELP

The base and height of an original rectangle are each increased by 15%. The area of the new rectangle is k/w times the area of the original rectangle. If k and w are relatively prime positive integers, find the value of k + w.

### algebra

If the length and width of a rectangle are each multiplied by 3, how would the new area of the rectangle compare with the original area of the same rectangle? would it be 9 times greater?

### Math

A rectangle is to have a perimeter of 18m. the graph below shows the relationship between the area of the rectangle and its width. What is the width of the rectangle with the largest area?

### perimeter problems math

janet built a 5-inch ny 7-inch rectangle A:what is the perimeter of janets rectangle? B:the perimeter of olivia's rectangle is 150% as long as janet's. what is the perimeter of olivia's rectangle? C. what is the area of janets rectangle? D.the area of walters rectangle is 6/5 ...

### math

a rectangle has a area 3 square feet and width 1/2 foot. What is the length of the rectangle? I think it is 3 times 1/2 equals 1 1/2 feet. Is this correct?

### math

a rectangle has length 3 feet and width 1/4 foot. What is the area of the rectangle? I think it is 3 x 4 equals 12 feet. Is this correct?

### Math

A rectangle is inscribed in a semi circle of radius 2, let x represent half the length of the rectangle. Write an expression for the area of the rectangle in terms of x. Well I know area=length X width. That's about all I know what to do though

### solving quadratic equations by factoring

the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.

### solving quadratic equations by factoring

the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.

### Math

The perimeter of rectangle Z is equal to its area.Rectangle Y has the same perimeter as rectangle Z.The length of rectangle Y is 5 inches and width of rectangle Z.

### math

The area of a rectangle is 100 sq. in. The perimeter of the rectangle is 4o in. A second rectangle has the same area but a different perimeter. Is the second rectangle a square? Explain why or why not.

### 4th grade math

Two rectangles are each 5 in. wide. The larger rectangle has an area of 35 sq in . and is 2 in longer than the smaller rectangle. What is the area of the smaller rectangle?

### geometry

The height of triangle ACE is 12 and base AE=20. A rectangle is inscribed in triangle ACE as shown in the diagram a) express the rectangle's area as a function of x and y b)Use the fact that triangle ACE is similar to BCD to write y as a function of x. c)express the rectangle'...

### Calculus

"A rectangle is inscribed in a semicircle of radius 2 cm. Find the largest area of such a rectangle". There is a diagram, but I think the question makes it clear enough what is going on. I'm having problems finding a relationship that I can work with.

### math117

The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t length times width=area, so factor out an x to ...

### Maths

The dimensions of rectangle B are twice the dimensions of rectangle A. The area of rectangle B is 200 cm2. What is the area of rectangle A?

### math

Triangle ADE is inside rectangle ABCD. Point E is half way between points B and C on the rectangle. Since AB is 8 cm and side AD is 7 cm. 1. what is the area of triangle ADE? 2. what is the ratio of the area of the triangle ABE to the area of triangle ADE? 3. What is the ratio...

### math 8th grade

perimeter of a rectangle is 32 in. wnat are the length and width that will give the rectangle the largest possible area? choices are 4in x 12in. ,5in.x 11 in.,7 in.x 9 in. ,8 in. x 8 in. i think 4 in. x 12in

### Math

answer to travis has designed a rectangle with an area of 59 square units. his rectangle is the smallest rectangle with whole number side lengths. what are the length and width of the rectangle, explain your reasoning. what is the perimeter of the rectangle? explain your ...

### area, perimeter

the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. the length of rectangle z is 5 inches and the width is 3 inches. explain how you can find the length and eidth of rectangle y.

### Math

Length of a rectangle is12m and the breadth is 10m and the inner area of the rectangle is 1.5m find the inner rectangle area

### math 5TH GRADE

The area of Walters rectangle is 3/4 the area of Janets.What is the area of Walters rectangle? The area of Janets rectangle is 24in.

### math

The length of a rectangle is 5 in. more than twice its width.? How do I find the width of the rectangle. The length = (2 x width) + 5 inches. Do you have any other information about the rectangle such as the area or the perimeter. I don't think there is enough information here...

### MATH0098

The length of a rectangle is 3ft more than twice its width, and the area of the rectangle is 54ft^2 . Find the dimensions of the rectangle. The other problem worked but how do you SOLVE it. I need to be able to do similar problems. I know the factors multiply to get the area ...

### CALCULUS

The region R is a rectangle with vertices P(a,lna), Q(a,0), S(3,0), and T(3,lna), where 1<a<3. I found that the expression for the area of the rectangle is f(a) = (ln(a))(3-a). The area of the rectangle is maximized for some c beween 1 and 3. Write the expression you ...

### Math

1. The length of a rectangle is 6 inches longer than thrice its width. The area of the rectangle is 57 square inches. Write a quadratic equation for the area of the floor in terms of x. Find the length and width of the rectangle. 2. If 1,500 ft of fencing is available to build...

### algebra

The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches. What are the dimensions of the rectangle? If x = the width of the rectangle, which of the following equations is used in the process of solving this problem?

### Math

The length of rectangle A is 1/3 of the length of rectangle B.Find the ratio of the area of rectangle A to the area of rectangle B?

### math

a house has two rooms of equal area. one room is square and the other room a rectangle, four feet narrower and 5ft longer than the square one. find the area of each room? let x = dimensions of the square. Rectangle then is x-4 and x+5 Set areas equal. area of square is x2 area...

### Math

Find the Maximum area for the given perimeter of a rectangle. State the length and width of the rectangle. 28 inches Well, finally a calculus problem. Ok, we know that the area for a rectangle is A=l*w and the perimeter is P=2(l+w) In this problem P= 28, so let's express one ...

### Algebra

How would I complete this problem? Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. I think the width is 3x+5 but not sure. Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music ...

### Math

In the figure below, the diagonal line divides the rectangle into halves Which statement about the figure is NOT true? On the rectangle the width is 3cm and the length is 4cm. The line that divides the rectangle is 5cm F. The perimeter of the rectangle is 14cm G. The area of ...

### Math

The width of a rectangle is two thirds its length the width of the rectangle is 10 inches what is the perimeter of the rectangle and what is the area of the rectangle

### maths

A rectangle is divided into 4 parts, A B, C and D. The areas of A: B: C are in the ratio 10:18:5. C is a square with an area of 25cm squared. What is the area of rectangle D?

### math

if the area of a small rectangle is sick square feet in the dimensions are doubled then what is the area of a large rectangle explain

### algebra

the area of a rectangle with base b and height h is bh. A rectangle sports goal is 9 ft wide and 8 ft high. Find the area of the opening

### math

if the area of a rectangle is 30 square centimeters and the length is 6 centimeters,use the equation 30=6w to find the width w of the rectangle.I don't understand what would be the correct answer I think my aswer doesn't look correct.

### calculus

A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area.

### math

I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?

### math

the ratio of the lengths of the corresponding sides of two rectangles is 8:3. The area of the larger rectangle is 320 ft^2. What is the area of the smaller rectangle?

### math

After the longer sides of a rectangle are decreased by 25%, the resulting shape is a square of area 576. What is the area of the original rectangle?

### math

The length of a rectangle is 3 inches greater than the width. Write the polynomials that represent the area of the rectangle a= lxw l=w+3 therefore area= (w+3)(W)

### Math

Draw 2 different rectangles with a the perimeter of 8cm. One rectangle has the least area. The other rectangle has the greatest area.

### geometry

The area of a rectangle is given by A = x2 + 4x – 5. Find the value of x if the total area of the rectangle is equal to 7 square units.

### math

The scale factor for two similar retangles is 3. If the area of the smaller rectangle is 8m^2, what is the area of the larger rectangle.

### math

The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle

### Math

In the figure to the right, ABCD is rectangle. Find the area of △ABC, if the area of △AOD is 10. It is a rectangle with a x in the middle.

### Geometry

A rectangle has an area of 6 square meters. What will be the area of the rectangle if each side length is increased by a factor 5? A. 11 square meters B. 30 square meters C. 125 square meters D. 150 square meters I think the answer is B

### Algebra

the length of a rectangle is 5m more than twice its width. and the area of the rectangle is 88m^2. find the dimensions of the rectangle.

### Math Ratios

The ration of the length of a rectangle to its breadth is 9:4. If the perimeter of the rectangle is 104 cm. find the area of the rectangle.

### MATH0098

The perimeter of a rectangle is 58yd , and the area of the rectangle is 54yd . Find the dimensions of the rectangle. Length: Width:

### Algebra

The length of a rectangle is 1 foot less than twice the width, and the area of the rectangle is 21 ft.². Find the dimensions of the rectangle

### 2nd grade math

If you have a rectangle with 24 square units 3 lines down 8 across how can you have a 4 unit rectangle with a perimeter of 8 around the outside also 6 units with a perimeter of 10 in a seprate problem A square of 4, perimeter of 8. What about a 2x2 square? A rectangle of 3x2 ...

### Math

The perimeter of rectangle P is 12 feet. The perimeter of rectangle Q is 18 feet. Both rectangles have the same area.Find the area and dimensoin of each rectangle.

### Algebra

The length of a rectangle is more than double the width, and the area of the rectangle is . Find the dimensions of the rectangle.

### Math

The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2. Find the dimensions of the rectangle.

### Algebra

The area of a rectangle is 21 ft^2,and the length of the rectangle is 1 ft less than twice the width. Find the dimensions of the rectangle.

### math

The length of a rectangle is 3 m more than double the width, and the area of the rectangle is 54 m^2. Find the dimensions of the rectangle.

### Math

How do I find the dimensions of a rectangle if the length of the rectangle is 1 yard more than twice its width, and the area of the rectangle is 66 yards^2 .

### math

The area of a rectangle is 77 yd2 , and the length of the rectangle is 10 yd less than three times the width. Find the dimensions of the rectangle.

### Algebra

The length of a rectangle is 8 ft less than three times the width, and the area of the rectangle is 35 ft2 . Find the dimensions of the rectangle.

### Math

A rectangle is inscribed in a circle of radius r. If the rectangle has length 2x, write the area of the rectangle as the product of two functions.

### Math

Find the perimeter and the area of the rectangle. I cant upload pics. Its a rectangle with 12cm at the bottom and theres a diaganal line going through and its 15cm Perimeter: 54 cm, Area: 180 cm^2 Perimeter: 54 cm, Area: 108 cm^2 Perimeter: 42 cm, Area: 180 cm^2 Perimeter: 42 ...

### Algebra I

Rectangle ABCD has vertices C and d on the x-axis and vertices A and B on part of the parabola y = 9 - x^2 that is above the x-axis. a.) Find the coordinates of A, B, C, and D in terms of x. b.) Determine the Area of the rectangle as a function of x. c.) What is the domain for...

### geometry

The perimeter of a rectangle is 42m , and the area of the rectangle is 54m^2 . Find the dimensions of the rectangle.

### beginning algebra

The length of a rectangle is 1ft more than twice its width, and the area of the rectangle is 28ft^2 . Find the dimensions of the rectangle. l= w=

### math

The area of a rectangle is 532 square units. Find the length and the width of the rectangle. One side of the rectangle is x+5 and the other is x-4

### Help math

The length of a certain rectangle is quadrupled and the width is tripled. What is the ratio of the area of the new enlarged rectangle to the original rectangle?

### MATH - PLEASE HELP!!

The length of a rectangle is 3yd less than twice the width, and the area of the rectangle is 65ydsquare. Find the dimensions of the rectangle.

### MATH - HELP PLEASE

The length of a rectangle is 3yd less than twice the width, and the area of the rectangle is 65ydsquare. Find the dimensions of the rectangle.

### Geometry

If the area of the large rectangle is 147 units squared, what is the perimeter of the shaded area. There is a visual of a large rectangle divided into four smaller ones. One is shaded. The area is given for the other three: 48 and 15 along the top half of the large rectangle ...

### grade 3 math

1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with the dimensions 21 x2 ...