Question

Find area and perimeter

Answer 1

Area = π+4

Perimeter = 4π+4

Explanation:

1) The two semi-circles make one whole circle

2) one square.

Area

1) formula for the area of a circle =
`r^(2)\pi`

The diameter is 2 which means the radius is 1

so the area of the circle is equal to π

2) to find the area of a square you multiply the sides

2x2=4

So to find the total area you add
`\pi +4`

which leaves us with
`\pi +4`

Perimeter

1) the formula for the perimeter of a circle =
`2\pi r`

Since the radius is 1

the perimeter of both circles is 4π

2) to find the perimeter of only part of the square (two sides), you have to add them together

2+2=4

So the total perimeter is 4π+4