Question

IF the radius of a circle increased by 75% then it circumference will be

Answer 1

HEYA MATE, HERE IS UR ANSWER

Let the previous radius be r cm .

Previous circumference = 2 pie r

New radius =r+75 %of r

=r+$\frac {75}{100}$×r

=r+$\frac {3}{4}$×r

=r+$\frac {3r}{4}$

= $\frac {4r+3r}{4}$

= $\frac {7r}{4}$

New Circumference =2 ×pie ×new r

=2×$\frac{22}{7}$×$\frac{7r}{4}$

=11 r

$<b> So,new circumference =11 r .$

$\mathbb{Be\:Brainly}$