Are these true or false.......?

Question

1. All acute angles are congruent
2. All right angles are congruent
3. All obtuse angles are congruent
4.All straight angles are congruent

Please answer them in order, thanks! :)

Answer 1

1. False: there are many different acute angles. 50` or 87`, etc
2. True: only one right angle. 90`
3. False: many different obtuse angles. 95` or 112`, etc.
4. True: only one straight angle: 180`.

Answer 2

Congruent means that two or more things are the exact same size AND shape, no matter which way they are turned.

Acute Angles and Obtuse Angles can be any degree, so you cannot say that all of them are equal.

However Right Angles are always 90 degrees and straight angles are always 180, so these two are congruent.

Answer 3

1. False. a 60 degree angle is not congruent to a 30
degree angle.
2. True. The measure of a right angle is always
90 degrees.
3. False. A 120 degree angle is not congruent
to a 150 degree angle.
4. True. The measure of a straight angle is always
180 degrees.

Answer 4

1. false Acute angles can have a range of angles from more than 0 to less than 90.
2. true A right angle must be 90 degrees, so since they are all 90 degrees, they are all congruent.
3. false Obtuse angles, like acute, can have a range of angles, this time from 90 to 180.
4. true All straight angles must be 180 degrees, so they are all congruent.

Answer 5

1. True
2. False
3. True
4. False