12.12 Circular compound shapes
For each of the following compound shapes:
State the basic shapes that make up the compound shape.
Find the perimeter.
Find the perimeter of the following compound shapes, to two decimal places:
Find the shaded area in the following figures, correct to one decimal place:
Find the exact shaded area of the following figures:
For the compound shape shown:
State the basic shapes that make up the compound shape.
Find the exact area.
Tricia is drawing a yin-yang symbol. She chooses to make the radius of the overall circle be 16 \,\text{cm} and the radius of the small circles be 2 \,\text{cm}:
Find the area of the shaded part of the symbol.
Round your answer to two decimal places.
The back cover of a mobile phone is shown in the following diagram. The rounded corners are quadrants:
Find the area of the back cover, excluding the circular camera lens. Round your answer to two decimal places.