The formula for a trapezoid relates the area a, the two bases, a and b, and the height, h. a= 1/2 h(a+b) solve for h. a)h=2(a+b)/a b)h=a+b/2a c)h=2a/a+b d)h=a/2(a+b)

Hey there QueenDobby!

The answer should be C) h = 2A/a+b
To solve for h from the given equation A =  h (a+b) we need to isolate h and to do so, we need to start from the parenthesis according to PEMDAS.
So, since h it's being multiplied by (a+b), we need to divide (a+b) from both sides and we are left with  =   h. Now, to isolate h, you can see that h is being multiplied by  so what we need to do is to divide  from both sides, and when you are dividing fractions, you multiply it by the reciprocal of the fraction.
Example  goes to 
So, the reciprocal leaves us with  which is the same as 2. So we multiply both sides by 2 and we are left with h = 

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