Choose the correct alternative answer for each of the following questions.(1) The ratio of circumference and area of a circle is 2:7. Find its circumference.(A) 14π (B) 7π (C) 7π (D) 14π (2) If measure of an arc of a circle is 160° and its length is 44 cm, find the circumference of the circle.(A) 66 cm (B) 44 cm (C) 160 cm (D) 99 cm(3) Find the perimeter of a sector of a circle if its measure is 90° and radius is 7 cm .(A) 44 cm (B) 25 cm (C) 36 cm (D) 56 cm(4) Find the curved surface area of a cone of radius 7 cm and height 24 cm.(A) 440 cm2 (B) 550 cm2 (C) 330 cm2 (D) 110 cm2(5) The curved surface area of a cylinder is 440 cm 2 and its radius is 5 cm. Find its height.(A) 44πcm (B) 22πcm (C) 44πcm (D) 22π cm (6) A cone was melted and cast into a cylinder of the same radius as that of the base of the cone. If the height of the cylinder is 5 cm, find the height of the cone.(A) 15 cm (B) 10 cm (C) 18 cm (D) 5 cm (7) Find the volume of a cube of side 0.01 cm.(A) 1 cm3 (B) 0.001 cm3 (C) 0.0001 cm3 (D) 0.000001 cm3(8) Find the side of a cube of volume 1 m3 . (A) 1 cm (B) 10 cm (C) 100 cm (D)1000 cm