90
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3Same answer with an explanation:In an equilateral triangle, all sides are the same length and all three interior angles have the same number of degrees (60 degrees each).
Depends on the type of triangle. A right-angled triangle has ONE right angle - the remaining two angles total 90 degrees.
3There are 3 angles in a triangle. All 3 angles must add up to 180 degrees. For more help go on Wikipedia and type in triangles
In an isosceles triangle, two of the interior angles have the same number of degrees. This is because an isosceles triangle has two sides of equal length, which means the two base angles (the angles opposite those equal sides) are congruent. The third angle, called the apex angle, can be different from the base angles unless the triangle is also equilateral.
There is an infinite number of complementary angles. Complementary angles are all angles that add up to 90 degrees, such as two 45 degree angles.
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3Same answer with an explanation:In an equilateral triangle, all sides are the same length and all three interior angles have the same number of degrees (60 degrees each).
180 degree.
Depends on the type of triangle. A right-angled triangle has ONE right angle - the remaining two angles total 90 degrees.
A triangle is composed of 180 degrees. Two right angles = 180 degrees, the total number for all angles in a triangle. Thus a triangle can not have more than one right angle. l____________l <------ This is what two right angles look like, as you can see it cannot ever be a triangle.
3There are 3 angles in a triangle. All 3 angles must add up to 180 degrees. For more help go on Wikipedia and type in triangles
In an isosceles triangle, two of the interior angles have the same number of degrees. This is because an isosceles triangle has two sides of equal length, which means the two base angles (the angles opposite those equal sides) are congruent. The third angle, called the apex angle, can be different from the base angles unless the triangle is also equilateral.
Yes, actually it has to be. The only type of triangle with even sides is an equilateral triangle, but all of the angles of an equilateral are 60 degrees, because everything is equal and 180(total degrees within a triangle)/3(number of angles)=60(degrees per angle of an equilateral).
The 3 interior angles of any triangle add up to 180 degrees
An infinite number of possibilities. An equilateral triangle, with each angle = 60 degrees is just one example.
All triangles have 3 interior angles that add up to 180 degrees