#### T2 - Measurements English Medium Free Online Test 1 Mark Questions 2020-2021

7th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

Part A

10 x 1 = 10
1. Formula used to find the circumference of a circle is

(a)

2πr units

(b)

πr2 + 2r units

(c)

πr2 sq. units

(d)

πr3 cu. units

2. In the formula, C = 2πr, ‘r’ refers to

(a)

circumference

(b)

area

(c)

rotation

(d)

3. If the circumference of a circle is 82π , then the value of ‘r’ is

(a)

41 cm

(b)

82 cm

(c)

21 cm

(d)

20 cm

4. Circumference of a circle is always

(a)

three times of its diameter

(b)

more than three times of its diameter

(c)

less than three times of its diameter

(d)

5. The formula used to find the area of the circle is ________ sq.units.

(a)

4πr2

(b)

πr2

(c)

2πr2

(d)

πr2 + 2r

6. The ratio of the area of a circle to the area of its semicircle is

(a)

2:1

(b)

1:2

(c)

4:1

(d)

1:4

7. Area of a circle of radius ‘n’ units is

(a)

2πrp sq. units

(b)

πm2 sq. units

(c)

πrsq. units

(d)

πn2 sq. units

8. The formula to find the area of the circular path is

(a)

π(R2 − r2 ) sq. units

(b)

πr2 sq. units

(c)

2πr2 sq. units

(d)

πr2 + 2r sq. units

9. The formula used to find the area of the rectangular path is

(a)

π(R2 − r2 ) sq. units

(b)

(L × B) − (l × b) sq. units

(c)

LB sq. units

(d)

lb sq. units

10. The formula to find the width of the circular path is

(a)

( L − l ) units

(b)

( B − b ) units

(c)

( R − r ) units

(d)

( r − R ) units