Answer:
c = 2A/w - b
Explanation:
The area of a trapezoid can be calculated by using the formula A=1/2w(b+c). Which expression can be used to caculate the length , c, parallel sides to b
A = 1/2 × w (b + c)
Solving for c
Divide both sides by 1/2
A/1/2 = w (b + c)
2A = w (b + c)
Divide both sides by w
2A/w = b + c
Making c the subject of the formula
c = 2A/w - b
The expression that can be used to calculate the length , c, parallel sides to b is :
c = 2A/w - b