Difference 3994

In a trapezoid, the difference is a base of 6 cm. Calculate the lengths of the bottom of a trapezoid when its height is 8 cm and the area of the trapezoid is 168 cm square.

Correct answer:

a =  24
c =  18

Step-by-step explanation:


a-c=6
168 = (a+c)·8/2

a-c = 6
8a+8c = 336

Pivot: Row 1 ↔ Row 2
8a+8c = 336
a-c = 6

Row 2 - 1/8 · Row 1 → Row 2
8a+8c = 336
-2c = -36


c = -36/-2 = 18
a = 336-8c/8 = 336-8 · 18/8 = 24

a = 24
c = 18

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a system of equations and looking for calculator system of linear equations?

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: