What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

Related Mcqs:

1. A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of the cone is h. If the total volume of the solid is three times the volume of the cone then the height of the cylinder is________?

   A. 2h
   B. 4h
   C. 2h/3
   D. 3h/2

2. The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the cone.

   A. 74 π cm²
   B. 36 π cm²
   C. 48 π cm²
   D. 24 π cm²

3. A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is_________?

   A. 3: 5
   B. 2: 5
   C. 3: 1
   D. 1: 3

4. The radius of the base of cone is 3 cm and height is 4 cm. Find the volume of the cone?

   A. 12 π cm³
   B. 6 π cm³
   C. 8 π cm³
   D. 10 π cm³

5. A cylinder and a cone have a same height and same radius of the base. The ratio between the volumes of the cylinder and cone is__________?

   A. 1:3
   B. 3:1
   C. 1:2
   D. 2:1

6. The area of a base of a cone is 30 cm². If the height of the cone is 6cm, find its volume?

   A. 120 cm³
   B. 40 cm³
   C. 50 cm³
   D. 60 cm³

7. The average height of 35 boys in a class was calculated as 180cm. It has later found that the height of one of the boys in the class was wrongly written as 166 cm whereas his actual height was 106 cm. Find the actual average height of the boys in the class (Round off your answer to two decimal places)?

   A. 179.29 cm
   B. 178.29 cm
   C. 179.38 cm
   D. 178.39 cm

8. The average height of 50 pupils in a class is 150 cm. Five of them whose height is 146 cm, leave the class and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is __________ .

   A. 149
   B. 151
   C. 152
   D. 153

9. The radius of a circular cylinder is the same as that of a sphere. Their volumes are equal. The height of the cylinder is________?

   A. 4/3 times its radius
   B. 2/3 times its radius
   C. Equal to it’s radius
   D. Equal to it’s diameter

10. If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm², then length breadth and height in cms, are respectively?

    A. 90, 85, 60
    B. 85, 75, 60
    C. 90, 75, 70
    D. 90, 75,60