Science (English Medium) Class 11 - CBSE Question Bank Solutions

Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm

(Use `pi = 22/7`)

In a circle of diameter 40 cm, the length of a chord is 20 cm. Find the length of minor arc of the chord.

If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.

Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length

10 cm

Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length

15 cm

Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length

21 cm

Find the degree measure corresponding to the following radian measure:
\[\frac{9\pi}{5}\]

Find the degree measure corresponding to the following radian measure:
\[- \frac{5\pi}{6}\]

Find the degree measure corresponding to the following radian measure:
\[\left( \frac{18\pi}{5} \right)\]

Find the degree measure corresponding to the following radian measure: 
(−3)^c

Find the degree measure corresponding to the following radian measure: 
 11^c

Find the degree measure corresponding to the following radian measure: 
 1^c

Find the radian measure corresponding to the following degree measure:
300°

Find the radian measure corresponding to the following degree measure: 35°

Find the radian measure corresponding to the following degree measure: −56°

Find the radian measure corresponding to the following degree measure: 135°

Find the radian measure corresponding to the following degree measure: −300°

Find the radian measure corresponding to the following degree measure: 7° 30'

Find the radian measure corresponding to the following degree measure: 125° 30'

The difference between the two acute angles of a right-angled triangle is \[\frac{2\pi}{5}\] radians. Express the angles in degrees.