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3 years ago

Plz help I really need it 15 points

Mathematics

2 answers:

bija089 [108]3 years ago

7 0

Answer:

x=65

Step-by-step explanation:

First, we need to find the 2 base angles of the triangle

105 is adjacent to another angle, and they are on a straight line. Therefore they are supplementary and add to 180 degrees

105+z=180

Subtract 105 from both sides

z=75

140 is adjacent to another angle, and they are on a straight line. Therefore they are supplementary and add to 180 degrees

140+y=180

Subtract 140 from both sides

y=40

Now, we know the two base angles of the triangle are 40 and 75. The angles in a triangle add to 180 degrees, so

40+75+x=180

Combine like terms by adding 40 and 75

115+x=180

Subtract 115 from both sides

x=65

Ivenika [448]3 years ago

6 0

Answer:

I'm pretty sure its 40

hope I helped

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