Question

Find the area of the yellow region.

Round to the nearest tenth.
8 cm
8 cm
Area
[ ? ] cm2

Answer 1

13,8

Explanation:

The area of a square = 8 * 8 = 64
`cm^(2)`

There are 4 quarters of a circle, which make one full circle

The area of a circle is π *
`r^(2)` = 3,14 *
`4^(2)` = 50,24
`cm^(2)`

Here π ≈ 3,14, r is radius, r = 8/2 = 4 cm

The area of the whole square - the area of a circle = 64
`cm^(2)` - 50,24
`cm^(2)` = 13, 76
`cm^(2)` ≈ 13,8
`cm^(2)`

Answer 2

13.76 cm^2

Explanation:

over all area=8x8=64

4 circular quarter areas=one whole circle in area.

circle area=pi(radius)^2=3.14(4)^2=50.24

overall-circular=64-50.24=13.76 cm^2