Question

Find the sine of ∠E.

Answer 1

hyp = 10
adj = √82

√82 ² + opp² = 10²

82 + opp² = 100

opp² = 100-82

opp = √18


Sin E = √18 / 10

E = 25.6°

Answer 2

solution

by using pythagorus theorem

h^2 =p^2 +b^2

• 10^2 = p^2 +under root 82 square

therefore p is equal to

`3 √(2) \\`

sine E =p/h

=

`3 √(2) / 10`