Multiple Choice Question (MCQ)

Question: What is the area of a (A) semicircle whose dia is 20 cm (d)?
A. 147.1 cm<sup>2</sup>
B. 157.1 cm<sup>2</sup>
C. 167.1 cm<sup>2</sup>
D. 177.1 cm<sup>2</sup>
Correct Answer: 157.1 cm<sup>2</sup>