Question

Can someone help me please

Answer 1

Explanation:

Since Sin in your trigonometric ratio is sin¤= opp/hyp

where the b the line the right angle facing is hypothenus.your opposite is then line a

a= 5

b =5root5

using the trig ratio SinA= a/b= 5/5root5

SinA= 1/root5

SinA=.44727

A= Arcsin0.44727

A=26.5°

Answer 2

Answer:
`(1)/(√(5))` or
`(√(5))/(5)`

Explanation:

The sine of an angle is equal to the opposite of leg of the triangle over the hypotenuse. Since the side opposite angle A is 5, and the hypotenuse is
`5√(5)`, then sinA =
`(5)/(5√(5) )`, simplified to
`(1)/(√(5))` and rewritten as
`(√(5))/(5)`