S.chand Class 8 Maths Solution Chapter 16 Area of a Trapezium and a Polygon Exercise 16 B

 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) $48 \mathrm{~cm}^{2}$