Answer: 187.3 in²
Explanation:
A= (1/2)aP a is the apothem(center to midpoint of side)
P(perimeter)
P can be found by seeing that 1 of the sides is 10 in. long and multiplying by 6 sides
P=10*6=60
a, apothem, can be found by pythagorean.
c²=a²+b²
8²=a²+5²
a²=39
a=√39=6.24
A = 1/2 (6.24)(60)
=187.3 in²