Question

How can I work out the size of angle y?

Answer 1

180 degrees converted is 3.14159 i think

Explanation:

Answer 2

< y = 17 degrees.

Explanation:

x + y = 180 - 112 = 68 (as there are 180 degrees in a triangle)

Also, x = 3y, so substituting for x in the first equation:

3y + y = 68

4y = 68

y = 17.

So,

x = 3*17 = 51,