If the circumference of a circle is 44 cm, then what must be its area (in cm²)?
Let radius of circle = $$r$$ cm
=> Circumference = $$2\pi r=44$$
=> $$2\times\frac{22}{7}\times r=44$$
=> $$r=44\times\frac{7}{44}=7$$ cm
$$\therefore$$ Area of circle = $$\pi r^2$$
= $$\frac{22}{7}\times(7)^2$$
= $$22\times7=154$$ $$cm^2$$
=> Ans - (C)
Create a FREE account and get:
