Area's clash

Geometry Level 1

If the area of a circle is EQUAL to 4 times its circumference.what is the value of radius (r=?) ?

8 2 4 16

Syed Hissaan by Syed Hissaan , 20, Pakistan

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Rohit Udaiwal
Nov 9, 2015

Area of circle = π r 2 \pi r^{2} and circumference of circle = 2 π r 2\pi r .Its given that area of circle =4 times its circumference. We can form an equation as follows: π r 2 = 4 × 2 π r ⟹ r = 8 \pi r^2=4×2\pi r \\ \\ \implies \boxed{r=8}

1 Helpful 0 Interesting 0 Brilliant 0 Confused

1 pending report

Vote up reports you agree with

×

Problem Loading...

Note Loading...

Set Loading...