Question

Which expression is equivalent to the area of square A, in square inches?

1. 1/2(10)(24)

2. 10(24)

3. (10+24)^2

4. 10^2 + 24^2

Answer 1

The last answer is correct! 10^2+24^2 which equals 676

Answer 2

One side of Square A is the hypotenuse of the white triangle. The square of this hypo. is 24^2+10^2 = 576 + 100 = 676. Since the square of the hypo is the area of Square A, Square A has the area 676 sq. in.