Question

Find side x, giving your anwser to 1 decimal place

Answer 1

Answer: 10.8 cm

Following are the calculation to find the x:

Given:

Assuming the triangle is ABC:

then

∠A = 81∘

∠B = 40∘

A = 7cm

To find:

x=?

Solution:

To find the x value we use the Law of sine:

Putting the given value: