Question

the volume of right circular cone is 9856 cm3 cube if the diameter of the base is 28 cm find ☆the height of the cone and ☆slant height of the cone ☆curved surface area of the cone

Answer 1

hope this answer will help you.

Answer 2

☁Answer:-

Given

volume = 9856m²

Diameter = 28cm

Radius = 28/2 = 14cm.

i.) volume of cone = 1/3πr²h

1/3πr²h = 9856

1/3 × 22/7 ×14 ×14 × h = 9856

h = 9856 ×3 ×7/22 × 14 × 14

h = 448 × 3 / 14×2

h = 16×3

h= 48cm.

ii.) slant height of cone

l =  √[h² + r²]

l =  √[(48)² + 14²]

l =  √2304 + 196

l =  √2500

l = 50 cm.

Therefore , slant height= 50cm

iii.) curved surface area = πrl

22/7 ×14×50

22 × 2 × 50

=> 2200cm²

#Hopeithelps