Question

1. Find the length of a semicircle, given:
(i) its radius measures 5.6 cm.
(ii) its diameter measures 31.5 cm.​

Answer 1

Answer:

1. 28.8 cm

2. 81 cm

Step-by-step explanation:

1. length = pi r +d

              = 22/7*56/10+11.2

              = 17.6+11.2

              = 28.8 cm

2.length = pi r + d

              = 22/7*1575/100+ 31.5

              =49.5+31.5

              =81 cm