Question

Solve the triangle if B=78 degrees and a=41. Round to the nearest tenth.

Answer 1

b=197.6cm

Explanation:

Given that a = 41 and B =78°

From the diagram of the triangle,

Tan θ = opp/adj

Where θ=78°

Tan78°= b/41

b = tan78×41

b = 4.70× 41

b = 197.5944cm

To the nearest tenth

b=197.6cm