Please hurry and help me!!!!
1 answer:
Answer:
πr^2/2 or 3.14r^2/2
Step-by-step explanation:
Area of a circle= πr^2 or 3.14r^2
semi circle is half of a circle.
Area of a semicircle=1/2of area of a circle.
therefore, 1/2*πr^2 or 1/2* 3.14r^2
=πr^2/2 or 3.14r^2/2
r=d/2=10/2=5units
Area=1/2*π*5^2.
Area=1/2*25π =12.5π or 12.5(3.14)units ^2
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