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
7.7k 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
6.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.1m questions

10.8m answers

Other Questions

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?
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!