Q7 of 68 Page 9

In the figure PQR is a right triangle in which and ∠QPR = 30°. Find QP.

From the figure we can see that for ∠RPQ, RQ is the perpendicular and PQ is the base. Applying the formula for tangent of an angle we get,



⇒


⇒


QP = 8 m.


More from this chapter

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5

In the figure, ABC is a right triangle in which AB = 8 m, ∠BCA = 30°, then find

(i) the angle of elevation of A at C.


(ii) the angle of depression of C at A.


(iii) BC and AC

 6

ABC is a right triangle in which BC is horizontal, AB = 8 m, ∠BAC = 60°, then find

(i) the angle of elevation of A at C


(ii) the angle of depression of C at A


(iii) the distance of B from C

 8

In AABC, hypotenuse AC = 12 cm and ∠A = 60°, then find the length of remaining sides.

 9

In right angled triangle ABC, AC is the hypotenuse, AB = 12 cm and ∠ BAC = 30˚, then find the length of the side BC.