SOLUTION: Not able to follow the formula for solving this problem. Can you help me? Find the area of the front face of a blade. The expression 1/2h(b + D) gives the area of the trapezoid.

Question 979945: Not able to follow the formula for solving this problem. Can you help me?
Find the area of the front face of a blade. The expression 1/2h(b + D) gives the area of the trapezoid.
d =1 1/4
h =3/4
b =2 3/8
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
area=(1/2)h(b+d)
I assume the measurements are in inches, so the area would be in square inches.
or

or

You could use the measurements as fractions or as decimals.
Either way, a calculator would be very helpful.

, or

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