2017 SSC CGL 19 Aug Shift-2 Question 78

Question 78

What is the area (in sq cm) of a circle whose circumference is 26.4 cm?

Solution

$$2\pi r = 26.4$$

$$2\times \frac{22}{7}\times r=26.4$$

$$r = 4.2$$

area = $$\pi r^{2}$$ = $$\frac{22}{7}(4.2)^{2}$$ = $$55.44 cm^{2}$$

So the answer is option A.

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