Question

Find the value of 45 degree
of all trigonometric ratio by geometrical

Answer 1

In a Rt. angle Triangle,
Let the side be "a"
By Pythogorus therom
$a^2 + a^2=h^2$
h=a√2
Sin(45°)=a/a√2 = 1/√2
Cos(45°)=a/a√2=1/√2
Tan(45°)=a/a=1