8. A right circular cylinder with an altitude of 40 cm and base diameter of 30cm has a right circular cone at its top with the same base. If the cone is 60cm high, determine its lateral area in cm2.
a) 706.86
b) 2,827.43
c) 2,914.45
d) 3,345.76
1
Expert's answer
2020-12-11T13:13:52-0500
The lateral area of a right circular cone with a slant height l and base radius r can be found by the formula
AL=πrl
By the Pythagorean Theorem from the right triangle
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