Find the area of the following figure. the base angles are right angles.

143 in.2
137.5 in.2
121 in.2
113 in.2

area of the bottom square = 11*9 =99 squre inches

 for the triangular top the area = 1/2 x b x h

you have hypotenuse and height so need to calculate the base dimension

4^2 +x^2 = 7^2

16 +x^2 = 49

x^2 = 33 x = sqrt(33) = 5.7

area = 1/2 4*5.7 = 11.489

 there are two similar triangles so 11.489*2 = 22.97

99+22.97 = 121.97

looks like they rounded the numbers slightly different

 so 121 in2 is their answer

121 in^2

Step-by-step explanation:

answer:

sometimes

*i think

7.3

step-by-step explanation: