Question

What is the sin ratio of angle ~0 ? Start by finding the lengths of the sides of the triangle.

Answer 1

sinΘ =
`(4)/(5)`

Explanation:

given the point (3, 4 )

the x- coordinate indicates the horizontal length of the triangle, that is 3

the y- coordinate indicates the vertical length of the triangle, that is 4

the triangle is right and is a 3- 4- 5 , hypotenuse is 5

then

sinΘ =
`(vertical)/(hypotenuse)` =
`(4)/(5)`