0 votes 0 votes What is the area of a semicircle with a diameter of $16$ inches? $32 \pi$ square inches $64 \pi$ square inches $128 \pi$ square inches $256 \pi$ square inches Quantitative Aptitude nielit2016mar-scientistd quantitative-aptitude geometry + – Lakshman Bhaiya asked Apr 3, 2020 recategorized Nov 4, 2020 by Krithiga2101 Lakshman Bhaiya 13.7k points 906 views answer comment Share See 1 comment See all 1 1 comment reply haralk10 738 points commented Apr 12, 2021 reply Share Area of circle = $\pi\times r^{2}=\pi \times \frac{d^{2}}{4}=\pi\times \frac{256}{4}=64\pi$ square inches 0 votes 0 votes Please log in or register to add a comment.
Best answer 2 votes 2 votes Area of semicircle = $\frac{1}{2} \times $ area of circle $= \frac{\pi r^2}{2} $ Diameter $=16$ inches $\implies $ radius $=8$ inches Required Area $=\frac{\pi r^2}{2} = \frac{\pi \times 8^2}{2} = 32\pi $ square inches. Option (A) is correct. Nikhil_dhama answered May 11, 2021 selected May 11, 2021 by Arjun Nikhil_dhama 906 points comment Share See all 0 reply Please log in or register to add a comment.