Question

Determine the unknown side lengths’ to the nearest tenth. for the first question and also please help with question 6

Answer 1

z =15cm and

y=9.0cm

Explanation:

Use sine rule

12/ sin53 = z / sin 90

Z = 12 x sin 90 / sin 53

Z = 15cm

To find y the angle opposite to y will be 180-(90+53)=37º

So

15/sin 90= y/sin37

y= 15 x sin37 /sin 90

y = 9.0cm