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Find the central angle of the shaded sectors (each circle is divided into equal sectors).
| Sectors |  |
 |
 |
 |
| Central angle of each sector (θ°) |
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Find the central angle of the sectors whose measures are given below. `(π = 22/7)`
area = 462 cm2, r = 21 cm
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Find the central angle of the sectors whose measures are given below. `(π = 22/7)`
length of the arc = 44 m, r = 35 m
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Find the difference between C.I and S.I on ₹ 5000 for 1 year at 2% p.a, if the interest is compounded half yearly
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Find the rate of interest if the difference between C.I and S.I on ₹ 8000 compounded annually for 2 years is ₹ 20.
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Find the principal if the difference between C.I and S.l on it at 15% p.a for 3 years is ₹ 1134
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The difference between compound and simple interest on a certain sum of money for 2 years at 2% p.a is ₹ 1. The sum of money is __________
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Ramya wants to paint a pattern in her living room wall with minimum budget. Help her to colour the pattern with 2 colours but make sure that no two adjacent boxes are the same colour. The pattern is shown in the picture.
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Colour the regions in the maps with few colours as possible but make sure that no two adjacent countries are of the same colour
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Find the rational numbers represented by the question marks marked on the following number line
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Find the rational numbers represented by the question marks marked on the following number line
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Find the rational numbers represented by the question marks marked on the following number line
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The points S, Y, N, C, R, A, T, I and O on the number line are such that CN = NY = YS and RA = AT = TI = IO. Find the rational numbers represented by the letters Y, N, A, T and I
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Draw a number line and represent the following rational numbers on it
`9/4`
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Draw a number line and represent the following rational numbers on it
`(-8)/3`
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Draw a number line and represent the following rational numbers on it
`(-17)/(-5)`
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Draw a number line and represent the following rational numbers on it
`15/(-4)`
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Match the following:
| Column A | Column B |
| (i) Area of a circle | (a) `1/4 pi"r"^2` |
| (ii) Circumference of a circle | (b) (π + 2)r |
| (iii) Area of the sector of a circle | (c) πr2 |
| (iv) Circumference of a semicircle | (d) 2πr |
| (v) Area of a quadrant of a circle | (e) `theta^circ/360^circ xx pi"r"^2` |
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For the sectors with given measures, find the length of the arc, area and perimeter. (π = 3.14)
central angle 45°, r = 16 cm
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For the sectors with given measures, find the length of the arc, area and perimeter. (π = 3.14)
central angle 120°, d = 12.6 cm
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