The circumference of the base 8m high solid cone is 264/7m . Find the total surface area of the cone
Answers
Answered by
1
Answer:
265/5m
Step-by-step explanation:
because 264/7m +8m=265/5m
Answered by
0
Answer:
Let the radius of the base be r meters.
Then, the circumference:
2πr=44 m.
⟹ r=
2π
44
=
2×22
44×7
=7m.
Let the slant height be l meters.
Then,
l=
h
2
+r
2
=
7
2
+24
2
=
625
=25m.
Now, Surface area = πrl=
7
22
×7×25=550m
2
.
∴ Area of canvas required =550 m
2
.
Given that width of the canvas is 2 m.
Therefore, Length of canvas required =
2
550
=275m.
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