Answer:
Total surface area of cone is S=πr(r+l).
Here, radius is r=12 m and slant height is l=23 m.
Thus,
S=πr(r+l)=π×12(12+23)=12π×35=420π m
2
Hence, the total surface area of the cone is 420π m ²..
Step-by-step explanation:
It may help you !!
Given:
To find :
Solution:
T.S.A of a cone = πr(l + r)
Where,
Now,
T.S.A of a cone = 22/7 × 12 (0.23 + 12)
T.S.A of a cone = 22/7 × 12 × 12.23
T.S.A of a cone = 461.24
Therefore, the T.S.A of a cone is 461.24 cm².
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Verified answer
Answer:
Total surface area of cone is S=πr(r+l).
Here, radius is r=12 m and slant height is l=23 m.
Thus,
S=πr(r+l)=π×12(12+23)=12π×35=420π m
2
Hence, the total surface area of the cone is 420π m ²..
Step-by-step explanation:
It may help you !!
Given:
To find :
Solution:
T.S.A of a cone = πr(l + r)
Where,
Now,
T.S.A of a cone = 22/7 × 12 (0.23 + 12)
T.S.A of a cone = 22/7 × 12 × 12.23
T.S.A of a cone = 461.24
Therefore, the T.S.A of a cone is 461.24 cm².