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Triangles can be classified by their sides or their angles.
When classifying them by their angles, triangles are called:
acute triangles - all three angles are acute (less than 90º)
right triangles - one right angle (90º) and two acute angles
obtuse triangles - one obtuse angle (larger than 90º) and two acute angles
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Can a trianle have a right angle?
A triangle has three sides and three angles. Right angled triangles are triangles in which the measure of one angle equals 90 degrees
When will two right triangles be similar?
To prove that two right triangles are similar, all you need to show is that one of them has one acute angle that's equal to one acute angle of the other one.
What are right angled scalene triangles?
Right triangles have one right angle. Scalene triangleIs have sides of unequal length. Right scalene triangles combine those aspects.
Do all acute triangles have only one acute angle?
No. All triangles MUST have at least two acute angles.
Is equilateral triangles the same as an acute angle?
yes in fact every triangle has at least one acute angle
How are right triangles and squares related?
they have at least one right angle. A square is the union of two isosceles right triangles. The hypotenuse of each triangle is the diagonal of the square.
What triangle has at least one obtuse angle?
-- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it . -- Right triangles, acute triangles, and equilateral triangles don't have any obtuse angles in them.
Is there such thing as a right obtuse angle?
No. Right triangles are triangles with one angle exactly 90°, and obtuse angles are triangles with exactly one angle that is greater than, but not equal to, 90°.
Do all triangles have two acute angles?
INCORRECT: No because there is a obtuse triangle and a right triangleCORRECT ANSWERYes all triangles have at least two acute angles. Obtuse triangles and right triangles also have at least two acute angles. They are called obtuse triangles and right triangles because by definition they are triangles with ONE obtuse angle and ONE right angle. So therefore they both have 2 acute angles. Also for an acute triangle, it would have 3 acute angles.
What kind of triangles does the Pythagorean theorem work for?
All right-angles triangles. That is triangles that contain one angle at 90 degrees.
In every triangle there is exactly one right angle?
Only in right angle triangles
The name of a triangle with one right angle?
a right triangle and triangles cant have more than one right angle
What is the hypotenuse angle theorem?
The hypotenuse angle theorem, also known as the HA theorem, states that 'if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent.'
Can a trianle have a right angle?
A triangle has three sides and three angles. Right angled triangles are triangles in which the measure of one angle equals 90 degrees
When will two right triangles be similar?
To prove that two right triangles are similar, all you need to show is that one of them has one acute angle that's equal to one acute angle of the other one.
Which are congruence theorems for right triangles?
The congruence theorems for right triangles are the Hypotenuse-Leg (HL) theorem and the Leg-Acute Angle (LA) theorem. The HL theorem states that if the hypotenuse and one leg of one right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent. The LA theorem states that if one leg and one acute angle of one right triangle are congruent to one leg and one acute angle of another right triangle, then the triangles are congruent.
What are right angled scalene triangles?
Right triangles have one right angle. Scalene triangleIs have sides of unequal length. Right scalene triangles combine those aspects.
