PSLE The figure is formed by joining three quarter circles of radius 7 cm. Find the perimeter of the figure. Round your answer to the nearest whole number. Take π = 3.14
Diameter of the quarter circle
= 2 x 7
= 14 cm
Circumference of the quarter circle
=
14 x 3.14 x 14
= 10.99 cm
Circumference of 3 quarter circles
= 3 x 10.99
= 32.97 cm
Perimeter of the figure
= 32.97 + 6 x 7 - 4 x 2
= 32.97 + 42 - 8
= 66.97
≈ 67 cm
Answer(s): 67 cm