The curved surface area of a right circular cone of radius 3r and height 4r is
Answers
Answered by
0
Answer:
radius = 3r
height = 4r
C.S.A of cone = πrl
= 3.14×3r×4r
= 3.14×12r²
= 37.68r²
Answered by
0
Answer:
75.4 units
Step-by-step explanation:
the curved surface area= πr(r+√h2+r2)
=3π(3+√4×4+3×3)
=3π(3+√25)
=3×22/7×(3+5)
=506/7
=75.4 units
Therefore,the value of the given curved surface area is 75.4 units
Similar questions