PSLE The figure is formed by joining two 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 2 quarter circles
= 2 x 10.99
= 21.98 cm
Perimeter of the figure
= 21.98 + 4 x 7 - 2 x 2
= 21.98 + 28 - 4
= 45.98
≈ 46 cm
Answer(s): 46 cm