In this page curved surface area worksheet1 we are going to see some
practice questions in the topic curved surface area. For each question
you can find solution with detailed explanation.
Questions |
Solution |
(11) If the vertical angle and the radius of the right circular cone are 60 degree and 15 cm respectively,then find its height and slant height. | |
(12) If the circumference of the base of the solid right circular cone is 236 and its slant height is 12 cm, find its curved surface area. | |
(13) A heap of paddy is in the form of a cone whose diameter is 4.2 m and height is 2.8 m. If the heap is to be covered exactly by a canvas to protect it from rain,then find the area of the canvas needed. | |
(14) The central angle and radius of a sector of a circular disc are 180 degree and 21 cm respectively. If the edges of the sector are joined together to make a hollow cone,then find the radius of the cone. | |
(15) Radius and slant height of a solid right circular cone are in the ratio 3:5. If the curved surface area is 60 Π cm², then find its total surface area. | |
(16) If the curved surface area of solid sphere is 98.56 cm², then find the radius of the sphere. | |
(17) If the curved surface area of the solid hemisphere is 2772 sq.cm, then find its total surface area. | |
(!8) Radii of two solid hemispheres are in the ratio 3:5. Find the ratio of their curved surface areas and the ratio of their total surface areas. | |
(19) Find the curved surface area and total surface of a hollow hemisphere whose outer and inner radii are 4.2 cm and 2.1 cm respectively. | |
(20) The inner curved surface area of a hemisphere dome of a building needs to be painted . If the circumference of the base is 17.6 m,find the cost of painting it at the rate of $5 per sq.m |
curved surface area worksheet1 curved surface area worksheet1 |