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What does a equal?

(don’t just give the answer pls explain)

What Does A Equal Dont Just Give The Answer Pls Explain class=

Sagot :

Xsychicidn

hi <3

okay so there are a few rules you need to be aware of first:

- angles in a triangle sum to 180

- angles on a straight line sum to 180

so first, lets find the missing angle of the triangle:

180 - 80 - (a - 5) = 105 - a

now lets form an equation because we know that 180 subtract this angle equals 2a:

180 - (105 - a) = 2a

75 + a = 2a

subtract a from both sides:

a = 75

hope this helps :)

Zihinakilidn

Answer:

the sum of two interior opposite angel is equal to the exterior angel

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