Question

A ladder 20m long reaches a window com above the ground find the distance of the foot of the ladder from base of the wall a15√3 b20√3 c10√3 d25√3​

Answer 1

Length of ladder = 20 m

Height = ?

Base = ?

From the measurements we can that Right-Angled Triangle is formed.

So,

= [Hypo]² = Side 1² + Side 2²

= 20² = x² + x²

= 2x⁴ = 400

= x⁴ = $\frac{400}{2}$

= x⁴ = 200

= x = $\sqrt[4]{200}$

= x = $10 \sqrt{2}$

I hope it will help you!!!