Question

A cylinder and a cone have equal base radii and equal heights . if their c.s.a. are in ratio 8:5, what is the ratio of their radii to heights ?​

Answer 1

Answer:

thanks for 286 likes on live please can you guys reach to 600 likes please friends please please please please please pleas please please please please please please 2000 please please please

Answer 2

Step-by-step explanation:

CSA of cylinder : 2πrh

CSA of cone : πrl

Ratio = CSA of cylinder/CSA of cone = 2πrh/πrl = 8/5

⇒ h/l = 4/5

⇒ h²/l² = 16/25

⇒l² = (25/16)h²

⇒ h² + r² = (25/16)h²

⇒ r² = (9/16)h²

⇒ (r/h)² = (3/4)²

⇒\boxed{r/h = 3/4}

hence ratio of radius to height is 3:4.

marke me brainlest