Question

3.
Kartik has six 100 rupees notes and two 500 rupees notes with him. Ho
much money does he have ?
Find the perimeter of the rectangle whose Length 25 cm, and breadth
4.
cm.
5.
Find the perimeter of a square whose sides are 45 cm.
6. The length of one side of a square handkerchief in 32 cm. Find the area
of the handkerchief?
7
Ritu's shopping list is
Banana
Mango
Apple
Guava
Orange
30
24
21
Symbol 1 fruit = 3
8. Find the selling Price when:-C.P= Rs. 800
Profit = Rs. 136
9.
Find the cost price when:- S.P=Rs 3420 and profit = Rs. 578​

Answer 1

Answer:

Area of each part is

(a) 72 cm2 (b) 36 cm2 (c) 18 cm2 (d) 9 cm2

Solution: Correct answer is (d).

Example 2: Area of a right triangle is 54 cm2. If one of its legs is

12 cm long, its perimeter is

(a) 18 cm (b) 27 cm (c) 36 cm (d) 54 cm

Fig. 9.7

Solution: Correct answer is (c).

In Examples 3 to 6, fill in the blanks to

make it a statement true.

Example 3: Area of parallelogram

QPON is cm2.

Solution: 48 cm2

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Words Numbers Formula

The area A of a circle

is π times the square

of the radius r.

A = π × 32

= 9π

= 28.3 units

A = πr2

Fi