Tube lessons

1)

The area of the quadrant of a circle of diameter 14cm where \(\pi=\frac{22}{7}\) is

77 sq.cm
7.7sq.cm
37.5 sq.cm
38.5 sq.cm

2)

OAB is a sector of a circle with centre O in which length of chord AB =radius of the circle = 10cm,the area of the sector OAB \((\pi=3.144)\)=

52.4 sq.cm
51.4 sq.cm
52.6 sq.cm
50.4 sq.cm

3)

An arc subtends an angle \(15^{0}\) at the centre. If the radius of the circle is 36 cm and \(\pi=3.14\),length of the arc=

8.42cm
9.42cm
9.42 sq.cm
9.28 sq.cm

4)

An arc subtends an angle of \(12^{0}\) at the centre of a circle of radius 21 cm.It covers a sector then the remaining part of the circle where \(\pi=\frac{22}{7}\), is

46.2 sq.cm
1340.8 sq.cm
1339.8 sq.cm
462 sq.cm

5)

An arc subtends \(120^{0}\) at the centre, it divides the total circumference into equal parts of

6
4
3
12

Mathematics

Ten Standard

Test your understanding of this lesson Area and perimeter of sector of a circle:-

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