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Because their 3 interior angles add up to 180 degrees

Which are: 90 degrees+acute angle+acute angle = 180 degrees

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βˆ™ 9y ago
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Q: Why can you say that two right triangles that share an acute angle are similar?
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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.


If an acute angle of one right triangle is congruent to an angle of a second triangle then are the triangles similar?

true.


Two right triangles that are not similar still may have one congruent acute angle in common?

Not so. The two acute angles of a right triangle must add up to 90 degrees.So if the triangles have one congruent acute angle in common, they must alsohave the other acute angle in common, and then they're similar.


When two right triangles are similar if an acute angle of one triangle is congruent to an acute angle of the other triangle?

this is true


Can two right triangles that are not similar still have one congruent acute angle in common?

No, it’s false.


Do triangles have at least one right angle?

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


Do all right triangles have acute angles?

All right angle triangles have a 90 degree angle and two acute angles that add up to 90 degrees


Are all acute and right triangles similar?

no


'True or false Two right triangles are similar if an acute angle of one triangle is congruent to an acute angle of the other triangle'?

Sounds true to me, all three angles are congruent...


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.'


Which triangles have a right angle d a or c?

They are the triangles that contain a 90 degree angle and two acute angles


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.