What is the area of a circle with diameter 12 mm?
Answer & explanation
Correct answer: option 3
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
What is the area of a circle with diameter 12 mm?
Correct answer: option 3
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