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15 votes
15 votes
Work out the size of angle y

Work out the size of angle y-example-1
User JChao
by
2.7k points

2 Answers

9 votes
9 votes

Explanation:

There you go I hope this helps

Work out the size of angle y-example-1
User Brown Smith
by
3.0k points
25 votes
25 votes

Answer:

y = 108°

Explanation:

3x - 12 and 2x + 16 are corresponding angles and are congruent , then

3x - 12 = 2x + 16 ( subtract 2x from both sides )

x - 12 = 16 ( add 12 to both sides )

x = 28

then

3x - 12 = 3(28) - 12 = 84 - 12 = 72°

y and 3x - 12 are adjacent angles and sum to 180° , that is

y + 72° = 180° ( subtract 72° from both sides )

y = 108°

User Mdnfiras
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3.0k points