3 years ago

Help, please, please!!

Mathematics

2 answers:

kumpel [21]3 years ago

4 0

Answer:

Step-by-step explanation:

The sum of the angles in a triangle is always 180 degrees.

40+3x+180-5x+10=180

-2x+50=0

-2x=-50

x=25

Again using the fact that the angles must have a sum of 180

40+3x+a=180

40+3(25)+a=180

40+75+a=180

a+115=180

a=65

So angle 1 is 65 degrees.

lapo4ka [179]3 years ago

3 0

The answer to your question is 65

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