Question

What is the value of x?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.

x= cm

Answer 1

Sine rule = c/SinC = b/SinB = a/SinA

SO 13/Sin40 = x/Sin87
20.224409... = x/Sin87
x = 20.19669...

So rounded to the nearest tenth,
x = 20.2

Answer 2

I took the K12 test

The answer is 16.3 cm