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Is this angle supplementary or congruent? Please help.

Is this angle supplementary or congruent? Please help.-example-1

1 Answer

11 votes
11 votes

Answer:

supplementary

Explanation:

we have,

3x+15+2x=180

=> 5x +15 = 180

=> 5x = 180-15

=> 5x = 165

=> x = 165/5

=> x= 33

so, 3x+15 = 3*33+15

=> 99+15

=>114

2x = 2*33

=> 99

now we can check if these angles are supplementary

114 + 99 = 180

so, they are supplementary

User Plowman
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