NCERT Solutions Class 10 Mathematics Chapter 9 Some Application of Trigonometry
Q.1) A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of a vertical pole to the ground. Find the height of the pole, if the angle made by the rope with the ground level is 30Β° Sol.1) Let AB be the vertical pole AC beβ¦
NCERT Solutions Class 10 Mathematics Chapter 8 Introduction to Trigonometry
Exercise 8.1 Q.1) In Ξ ABC, right-angled at π΅, π΄π΅ = 24 ππ, π΅πΆ = 7 ππ. Determine : (i) sin π΄ , cos π΄ (ii) sin πΆ , cos πΆ Sol.1) In π₯ π΄π΅πΆ, β π΅ = 90Β° By Applying Pythagoras theorem , we get π΄πΆ2 = π΄π΅2 + π΅πΆ2 = (24)2 + 72 = (576 + 49)ππ2 = 625 ππ2 β π΄πΆ = 25 (β¦