If a right circular cone of vertical height 24 cm has a volume of 132 cm3, then

Question

If a right circular cone of vertical height 24 cm has a volume of 132 cm3, then the area of its curved surface is:

Options:

A . 1254 cm2

B . 704 cm2

C . 550 cm2

D . 154 cm2

Answer: Option C

=> 1/3 — 22/7 — r² — 24 = 1232 or
r² = (132 —7/22 —3/24) = 49
Therefore, r = 7 cm
R =7 and h = 24,

Therefore, curved surface area

Was this answer helpful ?

Next Question

Question 1. If the volumes of two cones are in the ratio 1: 4 and their diameters are in the ratio 4: 5, then the ratio of their he....ratio 4: 5, then the ratio of their heights is?

Question 2. A cylindrical piece of metal of radius 2 cm and height 6cm is shaped into a cone of the same radius. The height of the ....of the same radius. The height of the cone is:

Question 3. Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge o....cube is made. Find the edge of the new cube?

Question 4. A room is 15m long, 4m broad and 3m height. Find the cost of white washing its four walls at 50p per m2 ? ....

Question 5. If the sides of a cube are in the ratio 4:3. What is the ratio of their diagonals? ....

Question 6. A rectangular courtyard, the sides of which are in the ratio of 4:3, cost Rs.600 for paving at 50 p per m2; find the le....per m2; find the length of the diagonal of thecourtyard?

Question 7. How many meters of carpet 50cm, wide will be required to cover the floor of a room 30m * 20m? ....

Question 8. The ratio of the volumes of a cube to that of the sphere which will fit inside the cube is? ....

Question 9. The area of the cardboard(in cm2) needed to make a box of size 25 cm * 15 cm * 8 cm will be? ....

Question 10. A river 2m deep and 45 m wide is flowing at the rate of 3 kmph the amount of water that runs into the sea per minute is....of water that runs into the sea per minute is?

Chapter 1 - GLOBAL STEEL SCENARIO & INDI Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Chapter 3.1 : Overview of Finance & Acco Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024

Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024

Chapter 1.1 : Personnel Functions- An ov Chapter 1 : Personnel Management SAIL E0 - GFM 2024

GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024

CBT Mixed Test 1 GPOE/GPA SAIL E0 2024