The volume of a cylinder with radius ‘r’ and height ‘h’ is measured by:
Height of a light house is 65 m. angles of elevation and depression of top and foot of a radar mast are 52° and 30° respectively. height of radar mast is
Chord divides circle into
If radius is 18 cm and angle at center of circle is 120° then area of sector is
If radius is 21 cm and angle at center of circle is 140° then length of arc is
Formula used to measure area of circle is
If sector of circle of radius 16 cm has an area of 140 cm² then angle subtended at center of circle is
Surface area of hollow cylinder with radius ‘r’ and height ‘h’ is measured by
By converting 900000cm³ into liters, answer will be
If diameter of right circular cylinder is 18cm with height of 28cm and value of pi = 3.142 then total surface area of cylinder is
If arc of circle of radius 30 cm has a length of 19 cm then angle subtended at center of circle is