Page 132 - Maths Skills - 7

Perimeter and Area
8 8 Perimeter and Area

Learning Outcomes

In this chapter, you will learn about:
� Perimeter � Areas of rectangular paths � Area of a triangle
� Circumference of a circle � Area of quadrilateral � Area of a circle
� Areas of rectilinear figures

Boot-Up (To Recapitulate Previous Knowledge of Concepts)

COMPETENCY BASED QUESTIONS

A. Multiple-Choice Questions
1. The length and breadth of a rectangular field are 25 m and 10 m respectively. What is its perimeter?

(i) 250 m (ii) 70 m (iii) 35 m (iv) 5 m
2. What distance Sanya will travel if she takes three rounds of a square park of side 50 m?
(i) 100 m (ii) 200 m (iii) 250 m (iv) 600 m

3. The perimeter of a regular pentagon is 100 m. How long is its each side?
(i) 40 m (ii) 20 m (iii) 50 m (iv) 500 m
4. The side of a square is 6 cm. If its side is doubled, then its new perimeter is

(i) 48 cm (ii) 36 cm (iii) 60 cm (iv) 24 cm

B. Fill in the Blanks

1. The amount of region enclosed by a plane closed figure is called its ________________.
2. ________________ is the distance around the figure.
3. Sq. m and Sq. cm are units of measuring ________________.

4. Perimeter of a regular polygon = Length of one side × ________________.

C. Write ‘T’ for true and ‘F’ for false Statements
1. To find the cost of painting a wall we need to find the perimeter of the wall.

2. Perimeter of a regular octagon of side 6 cm is 48 cm.

3. To find the cost of a frame of a picture we need to find the perimeter of the picture.

4. Area of the square is doubled if the side of the square is doubled.