Register
The area of a trapezoid is 180⁢cm2 . The height is 18⁢cm and the length of one of the parallel sides is 5⁢cm . Find the length of the second parallel side. Express your answer as a simplified fraction
142k views
4 votes
The area of a trapezoid is 180⁢cm2 . The height is 18⁢cm and the length of one of the parallel sides is 5⁢cm . Find the length of the second parallel side. Express your answer as a simplified fraction or a decimal rounded to two places

User Iivel
by
7.5k points

1 Answer

4 votes
The formula for area of a trapezoid is (b1+b2)/2*h

(5+x)/2*18= 180

Divide bith sides by 18
(5+x)/2=10

Multiply both sides by 2
5+x=20

Subtract 5 from both sides
x=15

Final answer: 15 cm
User Adanlif
by
6.5k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.0m questions

10.6m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Link Copied!