" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
l² = s² + ( r1 - r2 )²
12² = s² + (8 - 3)²
144 = s² + (5)²
144 = s² + 25
s² = 144 + 25
s² = 169
s = √169
s = 13 cm