true or false:math 8th grade?

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

Answer 1

1. False -- acute angles can range between 0° to 90°
2. True -- all right angles measure 90°
3. False -- obtuse angles can range between 90° and 180°
4. True -- all straight angles measure 180°

good luck!

Answer 2

1. False. An acute angle can have any measure from
0 to less than 90 degrees. A 30 degree angle is
not congruent to a 60 degree angle.
2. True. The measure of any right angle is 90 degrees.
3. False. An obtuse angle can have any measure
greater than 90 degrees.
4. True. The measure of any right angle is 180 degrees.

Answer 3

1. False. It's easy to come up with two different angles whose measures are less than 90 degrees, but aren't equal to each other.

2. True. All right angles are 90 degrees, so they all have the same measure, and are thus congruent.

3. False. It's easy to come up with two different angles whose measures are greater than 90 degrees, but aren't equal to each other.

4. True. All straight angles are 180 degrees, so they all have the same measure.

Answer 4

1. TRUE A parallelogram has opposite sides equal in length and opposite angles equal in measure. ALL RECTANGLE satisfies this definition. 2. FALSE A rhombus is also a parallelogram but it is not a square. 3. TRUE All square has two pairs of opposite sides parallel and all sides the same length. This satisfies the definition of a rhombus.

Answer 5

2 and 4 are true.

Answer 6

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

Answer 7

F
T
F
T

Answer 8

F
T
F
T