Deck 31: Area of Circular and Semicircular Figures

Question 1

Area of a Cylinder = Area of a Trapezoid =
Determine, in square inches, the area of a circle with a radius of 12".

Answer 1

452.16

Question 2

What is the area of the washer in the figure? All dimensions are in inches. Round the answer, in square inches, to the nearest hundredth.

Answer 2

19.25

Question 3

The tank in the figure has a diameter of 10" and a length of 28". What is its area, in square inches? Give the answer to the nearest thousandth.

Answer 3

358.500

Question 4

What is the total area of four templates like the one shown in the figure? All dimensions are in inches. Express the answer, in square inches, to the nearest thousandth.

Question 5

The two semicircular ends of a semicircular shape each have a radius of 18.5 cm, while the two flat sides of the shape are each 70 cm. What is the area of the full shape, in square cm? Round the answer to the nearest thousandth.

Question 6

A circular steel tank is welded to have a bottom diameter of 15". What is the area of the bottom, in square inches?

Question 7

A semicircular-sided tank is welded in the shop. The length of the tank's bottom, shown in the figure, is 25", and the radius is 8". What is the area of the tank bottom, in square inches? Round the answer to the nearest whole number.

Question 8

The tank in the figure has a diameter of 15" and a length of 32". What is its area, in square inches? Give the answer to the nearest thousandth.

Question 9

The diameter of a circular steel tank is 43". Find, in square inches, the area of the tank. Round the answer to the nearest hundredth.

Question 10

Find the area of the template in the figure. All dimensions are in inches. Round the answer, in square inches, to the nearest tenth.