Question

[ 11 ]. Find the value of k, if x = 3, y = - 2 is a solution of the equation 4x – ky = 14. [ 12 ]. If the angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles of the quadrilateral.[ 13 ] Find the curved surface area of right circular cylinder having radius 7 cm and height 10 cm. [14]. The curved surface area of a cone is 3080 cm2 and its radius is 28 cm. determine the slant height of the cone. [ 15 ]. The total surface area of a cube is 384 cm2. Find its volume. 16. The volume of a cube is 216 cm3. Find its total surface area.

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