Question

 A trapezoid has a height of 12cm , one base of length 5cm , and area of 60 cm2 . Find the length of the other base.​

Answer 1

Step-by-step explanation:

The area of a trapezoid can be found by the equation A=[(a+b)/2]h. We can plug these numbers into our equation to have 60=[(a+3)/2]12. From there, we want to get a by itself, so we need to isolate our variable.

Dividing both sides by 12 will cancel out the 12 on the larger side, making the new equation (a+3)/2=5. Multiplying both sides by 2 yields (a+3)=10. From there, one simply needs to subtract 3 from both sides, making a=7.

Therefore, the other base is 7 cm long.

Answer 2

Answer:

Hello mate

Step-by-step explanation:

Area of trapezoid is :- 1/2 (5+b)×5

60sq.cm × 2/1 = (5+b) × 5

120/5 = 5 + b

24 - 5 = b

19 = b