True. It could not have 2 right angles, because the combined angles of a triangle equal 180 and 2 right angles would leave the final side at 0 degrees.
false
False. They must be congruent.
True because it complies with Pythagoras' theorem.
False
True. It could not have 2 right angles, because the combined angles of a triangle equal 180 and 2 right angles would leave the final side at 0 degrees.
It is true because a triangle with a right angle and two acute angles is a right angle triangle.
False. All angles of an equilateral triangle are 60 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.
A right angle triangle can be scalene. Such a triangle has one right angle, two other unequal angles and no equal sides
False.
False. That is a right (-angled) triangle. An acute triangle has all three angles less than 90o
false
False
False
true
It is true