The two corners of the triangle are 40∘ and 80∘. Find the largest angle of this triangle.
| January 26, 2021 | education
The sum of all angles for any triangle is always equal to the same value – 180 degrees.
Let’s denote the unknown angle by X.
Then we can write the equality
40 gr. +80 gr. + X = 180 gr.
120 g + X = 180 gr.
X = 60 gr.
The largest angle is 80 degrees.
Answer: 80 gr.
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