# Algebra word problem

A 30 inch TV set has a width of 24 inches. What is its height?

1. 👍
2. 👎
3. 👁
1. Use this formula for finding the height and width of a triangle when you know the hypotenuse. Let a = the height.

a^2 + b^2 = c^2
a^2 + 24^2 = 30^2
a^2 + 576 = 900
a^2 = 324
a = ?

1. 👍
2. 👎
👤
Ms. Sue
2. 324 divided by sqrt is 18?

1. 👍
2. 👎
3. Yep! 18 is correct.

1. 👍
2. 👎
👤
Ms. Sue
4. Thank you

1. 👍
2. 👎
5. You're welcome.

1. 👍
2. 👎
👤
Ms. Sue

## Similar Questions

1. ### Geomertry

The surface area of a rectangular prism is 190 square inches, the length is 10 inches, and the width 3 inches. Find the height.

2. ### Math

Shawna reduced the size of a rectangle to a height of 2 inch. What is the new width if it was originally 24 inch wide and 12 inch Tall?

3. ### Math

Small cubes with edge lengths of 1/4 inch will be packed into the right rectangular prism. How many small cubes are needed to completely fill the right rectangular prism? The height is 3 3/4 inches, the width is 5 inches, length

4. ### Geometry

1.What is the perimeter of a rectangle with width 10 inches in length 13 inches? A.23inches B.36inches C.46inches*** D.130inches 2.What is the area of a triangle with base 19 inches and height 11 inchinches? A.209square inches

1. ### Calculus

A rectangle has width w inches and height h, where the width is twice the height. Both w and h are functions of time,t, measured in seconds. If A represents the area of the rectangle, what is the rate of change of A with respect

2. ### math

A television set is 36 inches wide and has a diagonal length of 42 inches. To the nearest inch, how tall is the set? A.9 B.13 C.22 D.55 Is the answer D?

3. ### MATH!!

A fish tank with a rectangular base has a volume of 3,360 cubic inches. The length and width of the tank are 14 inches and 12 inches, respectivily. Find the height, in inches, of the tank? V=LxWxH 3360=14x12xH 3360=168xH

4. ### Math

Huong covered a box with sticky-backed decorating paper. The paper costs \$.03 per square inch. How much money will Huong need to spend on paper if the length is 7 inches, width is 3 inches, and the height is 9 inches? I thought

1. ### Mathematics .

I need some help with this specific question. In a computer catalog, a computer monitor is listed as being 19 inches. This distance is the diagonal distance across the screen. If the screen measures 10 inches in height, what is

2. ### geometry

The length of a box is 4 inches longer than its width, and the height is 2 inches shorter than the width. Which equation can you use to solve for the length of the box if the volume is 240 cubic inches? (Assume that the width of

3. ### Math

PLEASE HELP I REALLY NEED IT!! A rectangular box is 8 inches in length, 3 inches in width, and 5 inches in height. The figure shows a rectangular box of length 8 inches, width 3 inches, and height 5 inches. The diagonal of this

4. ### Math

Suppose you want to enlarge a 4-inch by 6-inch photograph as much as possible so that it fits on a bulletin board that is 24 inches high. What will the width of the photograph be if the sides must remain in proportion? a. What is