Answer:
Approximately 76.7
Explanation:
So by using the ratios of 30°60°90° triangle, you find that the sides of the right triangle are 4, 4√3, 8
The height is 4√3
The bottom base is 15
The top base is 7
The area is ((7 + 15) / 2) * 4√3
Which is 11 * 4√3
About 76.7