Question

The diagram shows a right angled triangle. What is the value of h.
Round to 1 decimal place

Answer 1

h = 13.4cm

Explanation:

BAC + ACB = 90°

BAC + 48° = 90°

BAC = 42°

cos(BAC) = AB/BC

cos(42°) = h/18

h = 13.377 ≈ 13.4cm