Question

Find the perimeter and area of a semicircle whose diameter is: (1)18.2cm (2)5.6cm

Answer 1

Answer:

Step-by-step explanation:

1. R = 18.2/2cm

# 2πr/2

# (2×22/7×9.1)/2

# 57.2/2 cm

# 28.6cm

2. R = 5.6/2cm

# 2πr/2

# (2×22/7×2.8)/2cm

# 17.6/2cm

# 8.8cm

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Answer 2

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