Post a New Question

The area of a triangle with base b and height h is given by the formula A = ½ bh. Find the area of a triangle when the base is 9.0 cm and the height is 6.2 cm.

128,070 results

geometry
Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of the triangle?

pre-algebra
Assume that triangle ABC is congruent to triangle XYZ. If AB=12cm and BC=15cm, what is the length of segment YZ?

10th grade
Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.

5th grade
the lengths of two sides of a triangle are 15in.each.the third side measures 10 in.what type of triangle is this

Math
Triangle ABC is an obtuse triangle with two congruent angles. If m< C = 108 write an expression that represents m<A

geometry
describe the 2 transformations, the first followed by the second that combined will transform triangle ABC and triangle DEF. 23) A(-3,3), B(-3,1), C(0,1) D(6,6), E(6,2), F(0,2) 24)A(6,0), B(9,6), C(12,6) D(0,3), E(1,5), F(2,5)

Math ( please helllp )
The sides of a triangle have lengths ; 2x-1,x+3,3x-4 . Which of the following describes the perimeter of the triangle in terms if "x"

math 8
the measure of one angle of mnois 90 degrees . this means that the triangle can be classified as a -? triangle Would it be obtuse?

physic
3 charges sit on vertical equilateral triangle the side of each is 30.0 cm. if the triangle are A= +4.0 uC B=+5.0 uC and C=+6.0 uC (clockwise from top) what is the force on each charge?

Geometry
If the measures,in degrees, of the three angles of a triangle are x, x+10, and 2x-6, the triangle must be: A.right,B.equilateral,C.Scalene, D.Isosceles

Math
If I know all 3 angles of a right triangle and the hypotenuse how do I figure out the short side length of the triangle?

Geometry
A triangle has a perimeter of exactly 24 units. Which of the following could be the vertices of the triangle? A.) (-1,3),(2,-1),(-1,-1) B.) (6,0),(6,7)(0,7) C.) (-1,-1),(-6,-13),(-9,-9) D.) (-3,-4),(3,-4),(3,4) I am not sure on this one any help would be great

Kitondo boys
A triangle has vertices X(2,2) ,Y(4,2)and Z(3,4).The triangle is enlarged by a scale factor 2 through the origin.What are the coordinates of the image?

Physics
Three charges +2q, -q and -q are placed at the vertices of an equilateral triangle. What is the electric field and the potential at the circumcenter of the triangle?

Math
Triangle ABC is an acute triangle. If all angles are measured to the hundredths,what is the smallest angle measurement?

15-75-90 triangle??
what is the formula for these triangles ?

trig
which ser of lenths will form a triangle with greater area? 6ft,8ft, 10ft or 6ft,8ft,12ft...

science
For a given area of land, the average rate of creep is 14 mm per year. How long will it take the area to move 1 m?

Math
Are these correct: 1a) Find the lateral surface area in square inches of the cone with the following dimensions: h= 24 in, radius = 10 in, slant height = 26 in. (Use Pi= 3.14) I didn't know how to do: Lateral Surface Area = ______ square inches (exact answer) 1b) Find the ...

math
Can someone please check my answers and help me with the last question! 1. Solve sin2xcos2x = 4sin2x on the interval [0, 2pi] 0, pi, 2pi? 2. Exact value of sin(pi/12) - sin(5pi/12) root3/4? 3. Using factorial notation, 0! = 1 False? 4. Find the area of the following triangle. ...

algebra
In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

math
In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.

geometry- need help
Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches b. a can with diameter...

Trigonometry
Hi, this question concerns a right angled triangle. If I know the hypotenuse of the triangle is 16cm and I know the adjacent side to an unknown angle is 14cm which trigonometric ratio would I need to find the unknown angle? Many thanks

physics
two equal masses of 5kg are placed on two vertex of an an equilateral triangle and 20 kg mass on the third.each side is 20 cm long. find the force acting on 1 kg mass kept at the centroid of the triangle.

math
what is the lateral surface area of a right hexagonal prism whose base is a regular hexagon with sides measuring 8 incheslong and altitude measuring 6 inches tall

Math
Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

Algebra
Concrete forming tubes are used as molds for cylindrical concrete supports. The volume V of a tube is the product of its length l and the area A of its circular base. You can make 2/3 ft^3 of cement per bag. Write a rule to find the number of bags of cement needed to fill a ...

math help please
a plane intersects a square pyramid perpendicular to its base but not through a vertex.The plane forms a cross section what is the shape of the cross section a)trapezoid b)triangle c)square d)rectangle

Math: Pre-Calc
A right triangle has hypotenuse 5 inches long. Its area is 4 square inches. How long are the other sides?

math
one of the angles of a triangle is 100 degree and the other two angles are equal. find each of the equal triangle

Geometry
The volume of a cylinder is 250pie cm^3 and the height is 10 cm. Find the circulference of the base to the nearest hundredth of a centimeter.

Math
2. Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. a. 324 cm^3 b. 108 cm^3 c. 36 cm^3 d. 152 cm^3

maths - geometry
if the points A(1,-2) B(2,3) C(-3,2) and D(-4,-3) are the vertices of the paralleogram ABCD, then taking AB as the base, find the height of parallelogram.

math
find the volume of a square pyramid. Round to the nearest tenth(slant height=20 base=13)

trigonomety
FIND THE HEIGHT OF A TREE,IF 120 FT. FROM ITS BASE THE ANGLE OF ELEVATION OF ITS TOP IS 10 DEGREE 18 MINUTES

Just trying to find the correct size for a project
If isosceles angles are 45, 67.5 and 67.5 with a height of 5.25" what is the length of the base?

trig
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50° (a) the length BC (b) The size of angle ABC; (c) The size of angle CAD (d) The area of triangle ACD

math
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50° (a) the length BC (b) The size of angle ABC; (c) The size of angle CAD (d) The area of triangle ACD

calculas
can anyone help me with this question? A baseball diamond is a square whose sides are 90 ft long. Suppose that a player running from second base to third base has a speed of 30 ft/sec at the instant when he is 20 ft from the third base. At what rate is the player’s distance ...

physics
Two point charges of the same magnitude but opposite signs are fixed to either end of the base of an isosceles triangle. The electric field at the midpoint M between the charges has a magnitude EM. The field directly above the midpoint at point P has a magnitude EP. The ratio ...

Math
Calculate the slant height for the given square pyramid. Round to the nearest tenth. Pyramid base= 6cm Height= 5cm 6.2 cm 5.8 cm 7.8 cm 7.2 cm I am usually very good at solving these kinds of problems but I cant focus on anything right now and I keep getting thrown off. I'm ...

math
Area of the four walls of a room is 108 m2. If the height and length of the room are in the ratio of 2 : 5 and the height and breadth in the ratio 4 : 5, then the area, in m2, of the floor of the room is :

math
a poster is 25cm taller than it is wide. it is mounted on a piece of cardboard so that there is a 5cm border on all sides. if the area of the border alone 1350cm^2, what are the dimensions of the poster? It is almost a must to draw a diagram but I can't do that on the computer...

Math geometry
An architect is designing an A-frame cottage for a resort. A cross section of the cottage is an isosceles triangle. The front wall of the cottage must accommodate a sliding door. Knowing that the architect is allowed a rectangular space of 240 m³ in volume to build inside, ...

math
AB = 8 cm, AC = 6 cm, AD = 7 cm, CD = 2.82 and CAB=50°.   Calculate to 2 decimal places      (a) the length BC            (b) The size of angle ABC;          (c) The size of angle CAD           (d) The area of triangle ACD     

CALCULUS 2
Use calculus to find the volume of the following solid S: The base of S is an elliptical region with boundary curve 9x^2+4y^2=36. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.

college
1) You are given solutions of HCl and NaOH and must determine their concentrations. You use 37.0mL of NaOH to titrate 100mL of HCl and 13.6 mL of NaOH to titrate 50.0mL of 0.0782 M H2SO4. Find the unknown concentrations. Molarity of NaOH and molarity of HCL? 2) Sodium ...

Chemistry
1) You are given solutions of HCl and NaOH and must determine their concentrations. You use 37.0mL of NaOH to titrate 100mL of HCl and 13.6 mL of NaOH to titrate 50.0mL of 0.0782 M H2SO4. Find the unknown concentrations. Molarity of NaOH and molarity of HCL? 2) Sodium ...

homework
The Buckingham Fountain in Chicago shoots water from a nozzle at the base of the fountain. The height h, in feet, of the water above the ground t seconds after it leaves the nozzle is given by the function h(t) = –16t2 + 90t + 15. What is the maximum height of the water? ...

MATHS
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale. triangle has sides 7, Y and X and 45 degree angle can someone show me how to do this? im supposed to use trig ...

geometry
not sure if youll understand but ill try and explain the picture is a trapezoid i believe b1 is 7cm, and do not have the height but the numbers on the long side is 8cm and the side of b2 is 4cm this part of the pic looks like a right triangle am not able to find the height

Algebra
Use the figure to answer the following questions: ( a triangle with the bottom right corner of it labeled L with (1, 1) x y coordinates. Left corner of the triangle is labeled M at the (-3, 1) coordinates. the top of the triangle is labeled K at the (-2, 5) coordinates. A. ...

Algebra 2
I am trying to find the inverse of these functions. Can someone please check my answers and tell me how to do number 2? 1. y=7^x y=log base 7 x 2. y=log base 1/2 x 3. y=2^(x)-3 y=2^(x+3) 4.y=6+log x

math
A banner in the shape of an isosceles triangle has a base that is 2 inches shorter than either of the equal sides. If the perimeter of the banner is 34 inches, then what is the length of the equal sides?

Math-trig
A stairway runs up the edge of the pyramid. From bottom to top the stairway is 92 m long. The stairway makes an angle of 70° to the base edge, as shown. A line from the middle of one of the base edges to the top of the pyramid makes an angle of elevation of 52° with respect ...

Math_100
Would you rather have $200 base 10 or $1000 base on 5? What would be the base for $200. Which I would be better of the two choices

algebra
find the length x in the figure a shape like a shoe with x on top, 10 cm to the height, 6cm on the lace shoes and x in the front shoes.the area of the shaded region is given 144 cm square.

Economics(Please respond, thank you)
The table below shows the market basket quantities and prices for the base year (year 1) Base year 1 Price in price Quantity base year yr 2 Product Pizza 15 $3 $3.75 t-shirts 4 $10 $9 rent 1 $500 $550 In year 1 the CPI was? In year 2 the CPI was? I know that cpi= (expenditures...

Math, Algebra
So I've tried for two days to figure out this problem. I tried to ask my friend to help me but she just won't. My parents don't know anything about math, they said so themselves. The first day I tried I cried I got so frustrated. The second day I just gave up. Today is my last...

geometry
the longer base of an isosceles trapezoid is 14 feet. the nonparallel sides are each 10 feet long and the length of diagonal is 16 feet. find the measure of a base angle

trigonometry.
In a right triangle sinA= 3/5 and C=17. Find a and b. Be sure to draw a right triangle and letter it properly. how can i solve the math in this problem. i know i would have to use the Pythagoream Theorem but i don't know how to set the problem up first.

math
The measures of two angles of a triangle are 36 and 71. Find the measure of the third angle, and classify he triangle according to its angles. Would you have to add 36 and 71 and then subtract the answer from 180. Which gives you an answer of 73 acute

Chemistry
A 20.00 mL sample of a .1000M unknown acid solution is titrated with .1000M NaOH. Given that the acid is diprotic and its pKa's are 1.90 and 6.70 a.) Estimate the pH after 10 mL of base are added b.) estimate the pH after 20 mL of base are added c.) estimate the pH after 30 mL...

Vector
The points U(4,-1,2), V(-1,-1,-1) and W(-4,2,4) dermine a triangle in R^3 a) Determine the parametric equations for thr three lines containing the 3 sides of the triangle

geometry!!!
Write the ratios for sin A and cos A. The triangle is not drawn to scale. *right triangle. 14 on the side. 50 on the slant. and 48 on the bottom.

physics
In a certain right triangle, the two sides that are perpendicular to each other are 3.80 m and 8.10 m long. What is the length of the third side of the triangle?

Math
If there are six row in a triangle. What is the total number of cuber in the triangle. My answer is 36 cubes am I correct. If not please explain. Thanks

math
a triangle has sides f length xcm,(2x-1)cm and (2x+1)cm. If its perimeter is 40, state the size of the largest angle of the triangle giving reasons

Geoscience
can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the history of the area, ...

Geometry
How do I figure out the area and perimeter of a square if all I know is the cross (top left corner to bottom right corner) measurement? I have a square with the cross measurement of 8.5 (or 4 X sq root of 2, i rounded to 8.5). The square looks like it is cut in half to look ...

Math(Please help)
use the given information to solve the triangle. C= 85 degrees 20' a = 35 c = 50 I know that I have to find A,B,b but I do not know how to do this.

cartesian vectors 1
Given that points P(-6,1), Q(-2, -1) and R(-3,4) find: a) magnitude of vector RP b) perimeter of triangle PQR

Math
Point G is the centroid of triangle ABC. Use this given information to find the value of X. CG =3x+7 and CE= 6x FG = x+8 and AF = 9x - 6 BG = 5x -1 and DG = 4x -5

math: advanced geometry
given triangle ABC with side b=14 ft, c=17 ft, and a=17 ft, find the measure of angle A.

Geometry
Triangle ABC has side lengths AB=8, BC=12 and CA=14. Given that D, E and F are midpoints of BC, CA and AB, respectively. Find the value of AD^2+BE^2+CF^2.

Geometry
Triangle ABC has side lengths AB=8, BC=12 and CA=14. Given that D, E and F are midpoints of BC, CA and AB, respectively. Find the value of AD^2+BE^2+CF^2.

Physics
a ball is tossed from an upper story window of a building given an initial velocity of 8m/s at an angle of 20 below the horizontal.it strikes the ground 2seconds later. how far horizontaly from the base of the building does it strike the ground? find the height from which the ...

Geometry
is triangle XYZ with vertices X(-3,1), Y(2.4), Z(2.-5) a scalene triangle?

geometry
is triangle DEF with verticies D(-3,-4), E(2.-5), F(0,1) a right triangle?

math
a median of a triangle connects what points of the triangle?

algebra 2
Solve the triangle triangle EFG <G=90 degrees e=3 f=8

geometry
Prove a triangle is an isosceles triangle ith P(2,3) A(5,7) and T1,4)

math
triangle abc is congruent to triangle wxy

Math
In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is: AC BC AB AM

math
In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is: AC BC AB AM

maths
The triangle has vertices A(0,1),B(1,6) and C(5,2).Prove that the triangle is isosceles.

math
the measures of the angles of a triangle are represented by 2x+30, 5x+10 and 7x the triangle is

geometry
A triangle has side lengths of 6, 8, and 9. What type of triangle is it?

math
The sides a,b,c of a triangle are such that a^2+b^2+c^2=ab+bc+ca.What type of triangle is it?

geomotry
In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is:

Pre Calc To Reiny - Follow up on Pre-Calc Answer
Pre-Calc - Follow-up for Reiny - MUFFY, Saturday, October 3, 2009 at 10:27pm I wasn't sure if you would notice my question since it is so much later so I re-sent this as a new question. Please let me know if I shouldn't do that. I understand how you got a and b, but I am ...

algebra1 HELP PLEASE
Mary is making a pinata that has a ball-like shape. The pinata has a surface area of 50 square feet. Use the formula for the surface area of a sphere: to find the radius of the pinata. Round your answer to the nearest hundredth. _____ feet

algebra1 HELP PLEASE
Mary is making a pinata that has a ball-like shape. The pinata has a surface area of 50 square feet. Use the formula for the surface area of a sphere: s=4(pi)^2 to find the radius of the pinata. Round your answer to the nearest hundredth. _____ feet

math
The area of a triangle whose legs are in the ratio of 2:3 is 48. The length of the hypotenuse is a. square root 13 b. 8 c. 2 square root 52 d. 12 e. 208 please answer and explain

math
A circle is circumscribed about an equilateral triangle with side lengths of 9 units each. What is the area of the circle, in square units? Express your answer in terms of pi.

calculus
Given the area is in the first quadrant bounded by y²=x, the line x=4 and the 0X What is the volume generated when this area is revolved about the 0X? the answer is 25.13 but I don't know how. help me please

algebra
A sheet of cardboard with an area of 10 square feet is made into a closed rectangular box. The four sides of the box have the same area and two ends have the same area. The area of each of the four equal sides is twice the area of each end. What is the area of each face of the...

math/science
I have a right angled triangle hyp=10,and angle=60deg.I need to find how much magnetic field in Tesla passes through the hyp(ie a wire in magnetic field) at this angle.I have tried 10*(sin60deg)=8.66T.My tutor says its 10*(cos60 deg)=5T.The field comes from left to right.As ...

geometry
Triangle DEF contains two congruent acute angles. The sum of the measures of the two congruent acute angles is greater than 90 degrees. Anna concludes that the triangle must be an acute triangle. Which best describes her conclusion?

  1. Pages:
  2. <<Prev
  3. 34
  4. 35
  5. 36
  6. 37
  7. 38
  8. 39
  9. 40
  10. 41
  11. 42
  12. 43
  13. 44
  14. 45
  15. 46
  16. 47
  17. 48
  18. Next>>

Post a New Question