• # question_answer Two right circular cones of equal curved surface areas have their slant heights in the ratio of 3 : 5. Find the ratio of their radii. A)  5 : 3         B)  5 : 7             C)  8 : 3                            D)  3 : 5

Let slant heights be $3x$ and $5x$ Also, $\pi {{r}_{1}}.3x=\pi .{{r}_{2}}.5x$