True. An obtuse angle is between 90 and 180 degrees.
Yes, it is true that angle 60 degrees has two edges in the angle parts.
False because if each base angle is 43 degrees then the apex angle must be 94 degrees
False ------------------------------------ An acute triangle is one in which all angles are acute angles. An acute angle is less than 90°. A right angle is 90°, which is equal to 90° not less than 90° Therefore all the angles of a right triangle are not all acute Thus a right triangle is not an acute triangle.
The sum is greater than 90 degrees and less than 270 degrees.
False because an acute angle is greater than 0 and less than 90 degrees
It is true because a triangle with a right angle and two acute angles is a right angle triangle.
True. An obtuse angle is between 90 and 180 degrees.
True.
True and all 3 angles must add up to 180 degrees.
Sounds true to me, all three angles are congruent...
Yes, it is true that angle 60 degrees has two edges in the angle parts.
False because if each base angle is 43 degrees then the apex angle must be 94 degrees
true or false ? perpendicular lines intersect at an angle of 45
False ------------------------------------ An acute triangle is one in which all angles are acute angles. An acute angle is less than 90°. A right angle is 90°, which is equal to 90° not less than 90° Therefore all the angles of a right triangle are not all acute Thus a right triangle is not an acute triangle.
False. That is a right (-angled) triangle. An acute triangle has all three angles less than 90o
The sum is greater than 90 degrees and less than 270 degrees.