Question

3. The figure is made up of 5 identical quarter circles.

3a) Find the perimeter of the figure.
3b) Find the area of the figure.
( Take Pi Symbol = 3.14 )​

Answer 1

• a) P = 78.8 cm
• b) A = 251.2 cm²

Explanation:

The perimeter is the length of the botder line, which comprises of 5 arcs and 2 radius lengths.

• P = 5*1/4*2πr + 2r = 5/2*3.14*8 + 2*8 = 62.8 + 16 = 78.8 cm

The area comprises of 5 quarter circles

• A = 5*1/4*πr² = 5/4*3.14*8² = 251.2 cm²