R=2sinФ
sinФ=r/2
so u know by Pythagorean theorem always remember SOH CAH TOH
sin is opposite to hypotenuse
sinФ=r/2
where r is perpendicular and 2 is hypotenuse
that is what u want?<span />
Answer:
sin75º=sin(30)º+45º)
=sin 30 cos 45+cos 30 sin 45
=1/2*√2/2+√3/2*√2/2
=√2/4+√6/4
=(√2+√6)/4
Check with calculator:
sin 75º≈0.9659
exact value=(√2+√6)/4≈0.9659
The interior angles on the same side of the transversal are supplementary. If two parallel lines are cut by a transversal, the interior angles on the same side of the transversal are supplementary.
If you are solving for x then ~the answer is attached~
