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39 votes
Find the unknown angle mesure

Find the unknown angle mesure-example-1
User Talk To Frank
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1 Answer

11 votes
11 votes

Answer: 1=65° and 5=43

Explanation:

Question 1:

Angles on a straight line always add up to 180°.

So to find the angle of x on the first question you have to do 180-115=65°

You would have to use this method for questions 2, 3 and 4 as well.

Question 5:

Right angles always add up to 90° so to work out what x is you would have to do 90-47=43

You would have to use this method for questions 6, 7 and 8.

Hope this helps :)

User Kook
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