3151. Which one of the following has a greater perimeter than the rest?
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A. A square with an area of 36 sq.cm

B. A rectangle with 10 cm as length and 40 sq.cm as area

C. A circle with a radius of 4 cm

D. An Equilateral Triangle with a side of 9 cm

3152. The surface area of a (10cm x 4cm x3cm) brick is__________?
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A. 84 Sq.cm

B. 124 Sq.cm

C. 180 Sq.cm

D. 164 Sq.cm
3166. The area of sector of a circle whose radius is 12 metro and whose angle at the center is 42 is?
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A. 39.6 m<sup>2</sup>

B. 79.2 m<sup>2</sup>

C. 26.4 m<sup>2</sup>

D. 52.8 m2
3177. The area of a sector of a circle of radius 5 cm formed by an arc of length 3.5 cm is__________?
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A. 17.5 cm<sup>2</sup>

B. 8.75 cm2

C. 55 cm<sup>2</sup>

D. 0.35 cm<sup>2</sup>

3189. The product of the area of three adjacent faces of a rectangular box is equal to___________?
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A. the volume of the box

B. Twice the volume of the box

C. the square of the volume of the box

D. Cube root of the volume of the box