Blake is going to invest in an account paying an interest rate of 1.5% compounded quarterly. How much would Blake need to invest
1 answer:
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Answer: 410 square km
Step-by-step explanation:
The area of each of the triangles with their base on the 10 km side is , so their combined area is
.
The area of each of the triangles with their base on the 12 km side is , so their combined area is
.
The area of the bottom rectangular face is .
So, the total surface area is