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(12) The shaded part is enclosed by (made up of) four identical rectangles each measuring 16 cm by 4 cm. Find the area of the shaded part.

16 – 4 = 12
12 x 12 = 144

Ans : 144 sq cm.

 

(13) WXYZ is a rhombus. UZX is a straight line. Find angle UZW.

180 – 110 = 70
70/2 = 35
angle UZW = 70 + 35 = 105

Ans : 105 degrees.

In the rectangle AE = 7.2 m, BC = 9 m and BD = 15 m. Find the area of the rectangle.

area of the rectangle = 2 x (1/2) x 15 x 7.2 = 108

Ans : 108 sq m.

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