Question

Find the area of a semi-circle with a diameter, d = 20cm.
Give your answer as an expression in terms of π.

Answer 1

Answer:

Step-by-step explanation:

GIVEN:

DIAMETER=20 CM

therefore,radius=1/2×20 cm=10 cm

FIND:

AREA OF SEMICIRCLE=?

SOLUTION:

AREA OF SEMICIRCLE=1/2×AREA OF CIRCLE

=1/2×pie×r^2

=1/2×3.14×10×10

=1/2×314

=157cm^2

Therefore,area of semicircle is 157cm^2

Answer 2

Step-by-step explanation:

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