A=1/2h(b+c)

h=8=5 and c=2. What is the value of A

What do you mean by h=8=5??

Given the formula A=1/2h(B+C)

If H=8, B=5, And C=2, what is the value of A?

If H=8 B=5 C=2, then first, you would do (B+C)= 7. Then convert 1/2 to 0.50 and multiply 0.50 by 8, and you should get 4. Now the problem has been simplified to 4(7). Do 4 x 7 and you should get 28for your answer.