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3 years ago

Need help with this geometry assignment due soon pls smart people help and show work

Mathematics

1 answer:

Mamont248 [21]3 years ago

5 0

Answer:

1) 20 degrees. 2)60 degrees. 3)30 degrees

Step-by-step explanation:

For number 1, there are 180 degrees in a triangle. Since we already know all the measures, we can just make an equation.

90+31+3x-1=180

120+3x=180

-120 -120

3x=60

x=20

for number 2, the traingle must be equilateral because they all have the same measure. That's why it's 60 because 60*3=180

Last one:

Same as 1st one. Make an equation: x+3x+2x=180

Combine like terms

6x=180

x=30

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