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28 votes
28 votes
Find the unknown angle measures

Find the unknown angle measures-example-1
User Borchero
by
3.5k points

2 Answers

9 votes
9 votes

Answer:

Y=42

X=111

Explanation:

.

User Marc Lamberti
by
3.1k points
20 votes
20 votes

Answer:

x = 15 , y = 138

Explanation:

the sum of the 3 angles in a triangle = 180°

consider the triangle on the left

third angle + 65° + 73° = 180°

third angle + 138° = 180° ( subtract 138° from both sides )

third angle = 42°

42° and y are then a linear pair and sum to 180° , so

y = 180 - 42 = 138

consider the triangle on the right

x + 27 + 138 = 180

x + 165 = 180 ( subtract 165 from both sides )

x = 15

User Andrew Nguonly
by
3.0k points