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castortr0y [4]
3 years ago
8

What is the value of mza+mZb?a124°O345690°180°om​

Mathematics
2 answers:
alexira [117]3 years ago
7 0

Answer:

90°

Step-by-step explanation:

180-124=56 so angle a is 56 and a=c so c would also be 56 next you'd have to add the right angle with angle c. 90+56=146 then to get the angle for b you would have to subtract 180-146 which is 34

34+56=90°

kirill115 [55]3 years ago
6 0

Answer:

<h2>m∠a + m∠b = 90°</h2>

Step-by-step explanation:

∠a and ∠c are vertical angles. Therefore m∠c = m∠a.

∠b, 90° and ∠c form a straight line. Therefore:

m∠b + 90° + m∠c = 180°

substitute m∠c = m∠a:

m∠b + 90° + m∠a = 180°        <em>subtract 90° from both sides</em>

m∠b + m∠a = 90°

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