a cylinder is mounted by hemisphere and contains cone at bottom. whose diameters are same equal to 6cm and total height is 10cm,cone's height is 4cm.find TSA of the shape
Answers
Answered by
1
Step-by-step explanation:
H = 10 cm
r = 3 cm
h = 4 cm
Let l be the slant height of the cone
l² = r² + h²
l² = 4² + 3² = 16 + 9 = 25
l = 5 cm
TSA = 2πr² + 2πr(r+H) + πrl
TSA = 2π×9 + 2π×3(3+10) + π×3×5
TSA = 18π + 78π + 15π
TSA = 111π cm²
Similar questions