0
Learn the definitions. Any angle greater than 90º is obtuse. Two angles are congruent if and only if they are equal. For example, 105º ≠ 150º, but both are greater than 90º; therefore, they are not congruent. Obtuse, fersure!
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Does a rhombus have acute and obtuse angles?
In general a rhombus has one opposite pair of congruent acute angles and one opposite pair of congruent obtuse angles. A square, however, is a rhombus with four right angles.
Is a rhombus acute?
No. Except for the case of a square (a special case of rhombus), a rhombus will have 2 congruent acute angles, and 2 congruent obtuse angles. The square has 4 right angles. In fact, every quadrilateral will have either all 4 angles equal to right angle (square and rectangle), or will have at least 1 obtuse angle (also at least 1 acute).
Do rectangles have obtuse angles?
A rectangle has no interior obtuse angles.
What triangle has 2 obtuse angles?
No triangle has 2 obtuse angles
What is a counter example for the statement congruent angles are always vertical angles?
Vertical angles must necessarily be congruent, however congruent angles do not necessarily have to be vertical angles. An example of congruent angles which are not vertical angles are the 3 interior angles of an equilateral triangle. These angles do not share the same vertex yet they are congruent.
If two angles are obtuse then they must be congruent.?
Not always because 98 degrees and 140 degrees are both obtuse angles that are not congruent but angles 150 degrees and 150 degrees are both obtuse angles that are congruent.
Does obtuse triangle have any angles congruent?
An obtuse triangle must have two acute angles and these can be congruent.
Can an obtuse triangle have congruent angles?
Yes, an obtuse triangle can have two congruent angles, where for the obtuse angle measuring A degrees, each of the two other angles measures (180-A)/2.
Are all obtuse angles congruent?
no
How many right acute and obtuse angles does a hexagon have?
If it is a 'regular' hexagon, then all angles are congruent, and all are obtuse.
Can an obtuse triangle have two congruent angles?
Not always
Do parallelograms have no congruent angles?
Parallelograms normally have 2 congruent obtuse angles and 2 congruent acute angles that altogether add up to 360 degrees
Does a rhombus have acute and obtuse angles?
In general a rhombus has one opposite pair of congruent acute angles and one opposite pair of congruent obtuse angles. A square, however, is a rhombus with four right angles.
Can a rhombus have 2 obtuse angle?
Yes, (with 1 exception) all rhombi will have 2 congruent acute angles, and 2 congruent obtuse angles. The 1 exception is if the rhombus is a square, then all angles will be right angles.
What shape has 2 congruent parallel sides 2 congruent acute angles 2 congruent obtuse angles?
It is a rhombus that fits the given description.
Does an obtuse triangle always have 3 congruent sides?
An obtuse triangle does not always have three congruent sides. An obtuse triangle can be any form that always has three angles.
Is a rhombus sides and Angels congruent?
Its sides are congruent but not its angles because it has 2 equal opposite acute angles and 2 equal opposite obtuse angles.
