Answer:
10 inch^2
Two step workings.
Explanation:
1/2 (a+b) x h
Step 1
Sum big and tiny shown written afterwards above it for fractions.
3/4+1/4 = 1 that is shown above the sum in smaller writing as its just a little fraction sum.
Main sum
4 3/4 + 3 1/4 = 7+1 = 8
Step 2
Back to the equation
8 inches are then divided. = 1/2 (a+b) x h = 1/2 8 = 4 x h
Then multiply the height. Area = 4 x 2 1/2 = 10 inch^2