Answer:
There is not question to answer.
Step-by-step explanation:
Answer: 2/14; 3/21; 4/28
Step-by-step explanation:
Answer:
<h2>39.27 cm²</h2><h2 />
Step-by-step explanation:
area of semi circle = π r² / 2
where r = 10/2 = 5 cm
area = π (5)² / 2
= 39.27 cm²