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NNADVOKAT [17]
3 years ago
9

In triangle CDE, two triangles add to be 100 degrees. The third angle must be 80 degrees.

Mathematics
2 answers:
wariber [46]3 years ago
8 0
Sum of angles in any triangle = 180⁰.
If sum of two angles give 100⁰, them third angle (180-100)=80⁰.
So, the answer is true.
Alja [10]3 years ago
6 0
True, all triangles equal 180 degrees
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