3 years ago

∠1 and ∠2 are supplementary.

1 answer:

6 0

Supplementary means the 2 angles add up to 180 so...

124+(2x+4)=180

124+2x+4=180

124+2x+4-4=180-4

124+2x=176

124-124+2x=176-124

2x=52

2x/2=52/2

x=26
plug in and check

124+2x+4=180

124+2 (26)+4=180

124+52+4=180

176+4=180

180=180

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∠1 ​ and ∠2 are supplementary.

∠1 and ∠2 are supplementary.