** 9) Find total area of a cylinder, radius of whose base is 20 cm and whose height is 30 cm.**

(A) 3142 cm^{2}

(B) 6285 cm^{2}

(C) 37704 cm^{2}

(D) 3770 cm^{2}

** 10) Find the volume of a cylinder if r = 14 cm and h = 80 cm.**

(A) 49280 cm^{3}

(B) 3520 cm^{3}

(C) 7040 cm^{3}

(D) 281600 cm^{3}

** 11) Find the curved surface area of a cone of height 28 dm with a base of radius 21 dm.**

(A) 35 dm^{2}

(B) 2310 dm^{2}

(C) 770 dm^{2}

(D) 49 dm^{2}

** 12) The radius of the base of a wooden cone is 3.5 cm. Its slanting height is 4 cm. Find the area of its total surface.**

(A) 44 cm^{2}

(B) 38.5 cm^{2}

(C) 82.5 cm^{2}

(D) 15.5 cm^{2}

** 13) Find, the volume of the cone when the radius of its base is 15 m and its altitude is 28 m.**

(A) 6600 m^{3}

(B) 2200 m^{3}

(C) 440 m^{3}

(D) 2100 m^{3}

** 14) A garden is 40 m long and 24 m wide. All along the border there is a pavement 3 m wide on the inner side of the garden. Find area of the pavement.**

(A) 960 m^{2}

(B) 612 m^{2}

(C) 348 m^{2}

(D) 110 m^{2}

** 15) A room is 6.5 m long, 5 m wide and 4.5 m high. Find area of the four walls.**

(A) 51.75 m^{2}

(B) 103.5 m^{2}

(C) 146.25 m^{2}

(D) 110 m^{2}

** 16) The area of following trapezium is?**

(A) 125 sq cm

(B) 132 sq cm

(C) 139 sq cm

(D) 97 sq cm