Question

Please help on this triangle

Answer 1

h ≈ 13.4

Explanation:

Since the triangle is right we can use the sine ratio to find h

sin48° =
`(opposite)/(hypotenuse)` =
`(h)/(18)`

Multiply both sides by 18

18 × sin48° = h

⇒ h = 13.4 cm ( to 1 dec. place )