Question

Two solid right circular cone have the same height . The radii of their bases

are 3 cm and 12 cm respectively. They are melted and recast into a cylinder

of same height . Find the radius of the cylinder.​

Answer 1

Answer:

answer is...

Step-by-step explanation:

volumne of first cone + volumne of second cone = volumne of cylinder 1/3 ×pi × R^2 × h + 1/3× pi × r^2 × h = pi × r^2( radius of cylinder) ×h 1/3 × pi × h ( R^2 + r^2) = pi × r^2 × h =1/3 (R^2 + r^2) = r^2 =1/3 (12^2 + 3^2) = r^2 =1/3 × 153 = r^2 =51= r^2 now u can solve , take underroot of 51 hope u understood ...then mark brainlist