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Yes.
The total degrees of the 3 angles in a triangle must equal 180, so it's not possible to have a triangle with 2 angles >= 90.
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With similar triangles the corresponding angles are equal True or False?
True. With similar triangles the corresponding angles are equal.
If you know that two of the angles in a quadrilateral are obtuse then what is true about the other two angles and Explain?
You know that at least one of them must be acute. A quadrilteral can have three obtuse angles, but not four.
Is it true If two angles are complementary then both angles must be acute?
True because both angles must add up to 90 degrees
True or false Two right triangles that are not similar still may have one congruent acute angle in common?
False. Assume that you had a two right triangles with one congruent acute (<90 degrees) angle in common. Let x represent the number of degrees in this angle in both triangles (which we can do since the angles are congruent). Let y represent the degree of the other angle in the first triangle and let z represent the degree of the other angle in the second triangle. We know that the sum of the degrees of the angles in a triangle is 180. So for the first triangle we have, 90+x+y = 180 For the second triangle, 90+x+z=180 Therefore, 90+x+y=90+x+z Subtract the 90+x from each side: y=z Therefore the degrees of the angles of the two triangles both are 90 [because they are both right triangles], x [because we said that this is the number of degrees of the congruent angles given in the problem], and y [because y=z]. Because the three angles of both triangles have the same measurement, the triangles must be similar.
Are the angles of similar triangles equal?
yeah this is true a similar trangle maens three angls same. each of angle is 60digree
What is the least number of angles an acute triangle can have?
All acute triangles have 3 interior angles and 3 exterior angles. This is true for all triangles.
Is it true that isosceles triangles have to have acute angles?
Yes
Is it true that Acute triangles have no angles whose measures are greater than 90 degrees?
True
What statement sometimes true about the relationship between acute triangles and isosceles triangle?
The two acute angles are always equal.
'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...
Is it true that Obtuse triangles have one interior angle whose measure is more than 90 degrees?
Yes and their other two angles are acute angles.
With similar triangles the corresponding angles are equal True or False?
True. With similar triangles the corresponding angles are equal.
Is it true that an isosceles triangle can be acute or obtuse?
Yes, it is true that an isosceles triangle can be acute or obtuse. As long as a triangle has two equal angles and two equal sides, it is isosceles. That situation can occur in both acute (all angles less than 900) and obtuse (one angle more than 900) triangles. Examples are a triangle with the angles being 75-75-30 degrees (acute) and one having angles of 120-30-30 (obtuse). Of course the sides of the angles that are equal would also be equal, so both examples are of isosceles triangles.
Is it true that all angles in a rhombus are acute?
No. A Rhombus has two obtuse angles and two acute angles
If two angles are complementary then the angles are acute?
True.
Isosceles triangles can be acute or obtuse true or false?
true
Is it true that isosceles triangles may be obtuse or acute but never right?
No, it is not true.
