Solve for h in the mathematical formula A=1/2(a+b)h

Step-by-step explanation:

Since we arent given enough information to SOLVE for h, I will get as close as I can by rearranging the equation for h

Convert the fraction to a decimal for simplicity

A = 0.5(a + b)h

Divide both sides of the equals by 0.5

A/0.5 = (a + b)h

We can convert A/0.5 into its reciprocal

2 A = (a + b)h

Divide both sides of the equation by the bracketed (a + b)

(2 A)  /  (a + b) = h

Rewritten

The circle is centered at (-8,3) and has a diameter of 20.

Step-by-step explanation:

The radius is 10 because you would take the square root of 100. To find the diameter you would multiply the radius by 2.