21. In the figure, write the value of sinP and sin(90∘−R). 22

21. In the figure, write the value of sinP and sin(90∘−R). 22. Construct a pair of tangents to the circle of radius 3.5 cm, which are inclined to each other at an angle of 80∘. 23. There are 6 red, 5 blue and 4 green balls in a box. A ball is drawn at random from the box. What is the probability that the ball drawn is (i) not green (ii) red
Video solution 1: 21. In the figure, write the value of sinP and sin(90∘−R). 22. Construct a pair of tangents to the circle of radius 3.5 cm, which are inclined to each other at an angle of 80∘. 23. There are 6 red, 5 blue and 4 green balls in a box. A ball is drawn at random from the box. What is the probability that the ball drawn is (i) not green (ii) red

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21. In the figure, write the value of sinP and sin(90∘−R).

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