Question

Find Y
Special right triangles
Please last question of the day!! Due very soon

Answer 1

Given:

A right triangle with angles 30, 60, 90 degrees.

Hypotenuse =
`2√(2)` mm.

Base = y

To find:

The value of y.

Solution:

In a right angle triangle,

`\cos \theta = (Base)/(Hypotenuse)`

`\cos (60^\circ)= (y)/(2√(2))`

`(1)/(2)=(y)/(2√(2))`

`(2√(2))/(2)=y`

`√(2)=y`

Therefore, the value of y is
`√(2)` mm.