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CUET
General Test
Quantitative Reasoning
Mensuration: 2D
What is the area of a circle with diameter 12 mm?
12$\pi$ mm²
24$\pi$ mm²
36$\pi$ mm²
48$\pi$ mm²
Area of circle = $\pi r^2$, r = radius
If diameter = 12 mm, radius = d/2 = 6 mm
Thus, area = $\pi 6^2$ = 36$\pi$ mm²
