Question
A right circular cone has a height of 24 cm and a base
radius of 9 cm. What is the total surface area of the cone, including the base?Solution
Slant height (l) of the cone = √(r² + h²) = √(9² + 24²) = √(81 + 576) = √657 ≈ 25.61 cm. Total surface area = πr(l + r), Total surface area = π × 9 × (25.61 + 9) = π × 9 × 34.61 = 311.49π ≈ 978 cm².
Which one of the following combination is true?
Read the direction carefully and answer the following question.
Six students A, B, C, D, E and F are sitting in the field. A and B are from Neh...
Which one of the following lives on floor number Six?
Read the directions carefully and answer the following questions.
Seven persons O, P, Q, R, S, T, and U live in six floored building but not ne...
Which of the following is Correct?
The number of persons living between S and the one whose experience is 7 years is the same p?
Who among the following person attends the seminar just after V?
There are 5 books S, T, U, V & W placed on table. If S is placed below W, U is placed above V, T is placed below S and V is placed above W, then which o...
How many persons attend the marriage between T and Q?
C lives on which of the following floor?
Relevant for Exams:
