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Trigonometric Functions EXERCISE 3.1 Solutions
- Q1(i): Find the radian measures corresponding to the following degree measures: (i) $25^{\circ}$
- Q1(ii): Find the radian measures corresponding to the following degree measures: (ii) $- 47^{\circ}30'$
- Q1(iii): Find the radian measures corresponding to the following degree measures: (iii) $240^{\circ}$
- Q1(iv): Find the radian measures corresponding to the following degree measures: (iv) $520^{\circ}$
- Q2(i): Find the degree measures corresponding to the following radian measures (Use $\pi = \frac{22}{7}$). (i) $\frac{11}{16}$
- Q2(ii): Find the degree measures corresponding to the following radian measures (Use $\pi = \frac{22}{7}$). (ii) $-4$
- Q2(iii): Find the degree measures corresponding to the following radian measures (Use $\pi = \frac{22}{7}$). (iii) $\frac{5\pi}{3}$
- Q2(iv): Find the degree measures corresponding to the following radian measures (Use $\pi = \frac{22}{7}$). (iv) $\frac{7\pi}{6}$
- Q3: A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?
- Q4: 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 $\pi = \frac{22}{7}$).
- Q5: In a circle of diameter 40 cm, the length of a chord is 20 cm. Find the length of minor arc of the chord.
- Q6: If in two circles, arcs of the same length subtend angles $60^{\circ}$ and $75^{\circ}$ at the centre, find the ratio of their radii.
- Q7(i): Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length (i) 10 cm
- Q7(ii): Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length (ii) 15 cm
- Q7(iii): Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length (iii) 21 cm
Other Exercises for CBSE - Class 11 Mathematics Trigonometric Functions
Chapters in CBSE - Class 11 Mathematics
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