Question

60 POINTS! AKA, ALL MY POINTS. HELP ME PLEASE, DUE TODAY. COUNTS AS A GRADE, THANK YOU ! <3

Answer 1

1) Obtuse isosceles

One angle > 90, so obtuse

2 congruent angles, so isosceles

2) First three are correct.

Last two incorrect because not all triangles are right angle triangles.

And every triangle is a 3-sided polygon

3) First, second and last statements are correct.

Since it's an acute triangle, all 3 angles should be acute

Answer 2

see below

Explanation:

1. If one of the angles is 140 degrees, that is greater than 90 degrees, which makes it obtuse

Two of the sides are equal, which makes it isosceles

The triangle is isosceles obtuse

2. All triangles are plane figures true because they are 2 dimensional.

All triangles have 3 angles. true Triangles have 3 sides and 3 angles

All triangles have 3 straight sides. true Triangles have 3 sides and 3 angles

False, triangles do not have to have a right angle

False, all triangles are polygons. They are 3 sided closed figures

3. To be an acute triangle, all angles must be acute

exactly three acute angles - true

polygon - true

exactly one acute angle - false (they all must be acute)

exactly 2 acute angles false ( they all must be acute)

one right angle false (they all must be acute)

3 straight sides true Triangles have 3 sides and 3 angles