Exercise 16 B
Question 1
Find the areas of the following polygons :
<fig>
5. A school crossing sign has the dimensions as shown in the given figure.
(a) What is the area of the sign board?
(b) If the 4 such sign boards are cut from the rectangular metal sheet 350 $\mathrm{cm}$ long and $320 \mathrm{~cm}$ wide, what will be the area of the metal left over?
<fig>
Multiple Choice Questions (MCQs)
6. The area of the figure given below is
<fig>
(a) $266.27 \mathrm{~cm}^{2}$
(b) $256.27 \mathrm{~cm}^{2}$
(c) $265.72 \mathrm{~cm}^{2}$
(d) $256.72 \mathrm{~cm}^{2}$
7. The given figure is composed of four congruent trapeziums arranged around a shaded square. What is the area of the shaded square ?
<fig>
(a) $64 \mathrm{~cm}^{2}$
(b) $36 \mathrm{~cm}^{2}$
(c) $52.5 \mathrm{~cm}^{2}$
(d) $48 \mathrm{~cm}^{2}$
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