Page 2 - HA5

So, the length of lace = 4.71 m

Cost of 4.71 m lace = ₹ 70.65

2) Perimeter of the given figure = Circumference of the semi-circle + semi-circle
diameter
= 25.71 cm

3) r = 5 cm
2
Area of the circle = πr = 78.5 cm
4) Circumference of the inner circle = 2πr = 56.52 m

Circumference of the outer circle = 2πr = 119.32 m

5) Distance travelled by the tip of minute hand in 1 hour = circumference of the clock
= 2πr

= 94.2 cm