Question

On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 40°.A triangle with angle measures of 30° and 40° is triangle.Select from the drop-down menu to correctly classify the triangle
a.an acute
b.an obtuse
c. a right

Answer 1

The answer is b. an obtuse. This is because if it were a right angled triangle, then 90 + 30 + 40 would equal 180 and it doesn't. It's obtuse because 30 + 40 = 70, and triangles have to add up to 180° so the last angle would need to be 110°, which is an obtuse angle. I hope this helps!

Answer 2

A triangle with angle measures of 30° and 40° is an obtuse triangle.

Triangle

A triangle is a polygon with three sides and three angles. Types of triangle are acute, obtuse, right angled triangle.

An acute triangle is one in which all the angles are acute (less than 90°), an obtuse triangle has two acute and one obtuse (greater than 90°) while a right angled triangle has one 90°.

For A triangle with angle measures of 30° and 40°:

30 + 40 + x = 180

x = 110 (obtuse)

A triangle with angle measures of 30° and 40° is an obtuse triangle.

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