The tops of two poles of height 60 metres and 35 metres are connected by a rope. If the rope makes an angle with the horizontal whose tangent is 5/9 metres, then what is the distance (in metres) between the two poles?

Question

নিচের অপশন গুলা দেখুন

• 63
• 30
• 25
• 45

Answer 1

সঠিক উত্তর হচ্ছে: 45

ব্যাখ্যা:

In the figure, two poles AB and PQ of height 60 m & 35 m are connected by rope BQ.

Rope BQ is making angle θ with the horizontal whose tangent is 5/9 metres;

∴ BO = 60 – 35 = 25 mtr

∴ tan θ = BO/OQ

⇒ 5/9 = 25/OQ

OQ = 45 mtr

∴ Distance between the two poles = 45 mtr