Question

In the figure, AB=4 centimetres, BC =5 centimetres. <B=90° cos C is:

• A. 5 /√41
• B. 5/4
• C. 4/√41
• D. 4/5

Answer 1

Answer:

A. 5 /√41

Cos C $=\frac{5}{\sqrt{41}}$