On a piece of paper, use a protractor to construct a triangle with angle measures of 20° and 30°.

Which statements about this triangle are true?

Select all correct answers.

It is an acute triangle.
The third angle measures 130°.
Two sides have the same length.
It is an obtuse triangle.
All sides have different lengths.
The third angle measures 50°.

due in 15 minutes pls help!

Obtuse triangle is a triangle that has one angle that is more than 90 degrees and all the sides have different lengths since all the angles are different.

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raphealnwobi raphealnwobi · Answer 2 · 2022-03-22T12:23:14+01:00

The third angle measures 130°. All the angles are different, hence all sides have different lengths.

What is a triangle?

A triangle is a polygon with three sides and three angles. Types of triangles are isosceles, equilateral, scalene and right angled triangle. The sum of angles in a triangle is 180 degrees.

Let x represent the third angle. The triangle with angle measures of 20° and 30°, hence:

x + 20 + 30 = 180

x = 130°

Since all the angles are different, hence all sides have different lengths.

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