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प्रश्न
Find the central angle of the sectors whose measures are given below. `(π = 22/7)`
length of the arc = 44 m, r = 35 m
उत्तर
l = 44cm r = 35cm
`"l" = (theta^circ)/(360^circ) xx 2pi"r"`
`44 = (theta^circ)/(360^circ) xx 2 xx22/7 xx 35`
`theta^circ = (44 xx 360^circ xx 7)/(2 xx 22 xx 35)`
`theta^circ = 360^circ/5`
`theta^circ = 72^circ`
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संबंधित प्रश्न
Some arcs are shown in the circle with centre ‘O’. Write the names of the minor arcs, major arcs, and semicircular arcs from among them.
In a circle with centre O, the measure of a minor arc is 110°. What is the measure of the major arc PYQ?
Find the central angle of the shaded sectors (each circle is divided into equal sectors).
| Sectors |  |
 |
 |
 |
| Central angle of each sector (θ°) |
Find the central angle of the sectors whose measures are given below. `(π = 22/7)`
area = 462 cm2, r = 21 cm
