3 years ago

What is the area of the semicircle (use 3.14 for ρ)?

Mathematics

2 answers:

MariettaO [177]3 years ago

4 0

Answer:

127.17 cm2

Step-by-step explanation:

hello :

area of the semicircle is : πr²/2 = 3.14(9)²/2 = 127.17 cm2 ....r=18/2=9cm

oee [108]3 years ago

3 0

Answer:

127.17cm²

Step-by-step explanation:

Area of a semicircle: πr² ÷ 2

d = 18

r = 18/2 = 9

Area of a semicircle: 9²π ÷ 2 = 127.17cm²

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