Can anybody help me with this??

A: you have it: 27 × 27 = 729

part B:  7850 square nautical miles.

part C:  277 square inches.

Step-by-step explanation:

Part b:  The diameter of the circle is given as 24 inches. the scale is based on 6 inches. 24 ÷ 6 = 4   Each 6 inches represents 25 nautical miles.

4 × 25 = 100. The 24 inch  diameter represents a width of 100 naut miles.

The Area of a circle is pi times the radius squared. the radius is half of the diameter, so 50. To find the area of the circle, use the formula A= πr²  

50 squared is 2500. Multiply that by a common value for pi, 3.14

2500 × 3.14 = 7850 square nautical miles

Part C

To find the area of this circle, use the formula A= πr² again

The diameter is given as 24 inches, half of the diameter is the radius, so 12.

12 squared (that's 12 × 12) is 144.  multiply that by a common value for pi. 3.14 × 144 = 452.16 square inches

You already have the area of the square base from part A, 729 square inches. Subtract the area of the circular screen.

729 - 452.16 = 276.84  Round up to the nearest square inch:

277 square inches.

b

step-by-step explanation:

it have 5 sides and 5 identicle angle.the rest does not have the same property as b.

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