Question

8.triangle ABC has measures of angles /_A=40°,/_B=60°,/_C=80°,what type of triangle is it​

Answer 1

Answer:

it is a scalene traingle..

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Answer 2

Answer:

Step-by-step explanation:

Suppose we have a triangle ABC such that, <A=40, <B=80 and <C= 60 deg.

The midpoints of BC is D, AC is E and AB is F. Join DEF.

Now we have AEDF as a parallelogram. <EDF opposite <A = 40 deg.

We have BDEF as a parallelogram. <DEF opposite <B = 80 deg.

We have CDFE as a parallelogram. <DFE opposite <C = 60 deg.

Conclusion: The angles formed by joining the midpoints of the sides of a triangle will be the same as the angle opposite them in the original, main triangle.