sin θ = cos (90° - θ)
cos θ = sin (90° - θ)
The interior angles of a triangle add up to 180. So a triangle with 3 equal sides (or angles) will have 60-degree angles. * * * * * True, but the question is about an isosceles triangle, not an equilateral triangle. The angles of an isosceles triangle are x, x and 180-2x degree where x is a measure between 0 and 90 degrees.
Angles have toad to 180 degrees to be triangle so you have no triangle as angles add to 190. If angle is 116 degrees instead of 126 degrees you have isosceles triangle
It is a right angle triangle
This are called congruent angles. For example, In an isosceles triangle, the two angles which are opposite to the sides that have the same length, have the same measurements. They are called the base angles of the triangle. When each of them is 45 degree, the triangle is also a right triangle, since the other angle is 90 degree.
37 degree
The interior angles of a triangle add up to 180. So a triangle with 3 equal sides (or angles) will have 60-degree angles. * * * * * True, but the question is about an isosceles triangle, not an equilateral triangle. The angles of an isosceles triangle are x, x and 180-2x degree where x is a measure between 0 and 90 degrees.
A triangle with two 45 degree angles must be a right triangle.
It is an equilateral triangle which in fact has three 60 degree angles
No triangle has any 90-degree angles unless it's a right triangle. Most triangles are not.
Angles have toad to 180 degrees to be triangle so you have no triangle as angles add to 190. If angle is 116 degrees instead of 126 degrees you have isosceles triangle
180
It is an isosceles triangle.
A triangle has no right angles when it is not a right angle triangle as for example as in the case of an equilateral triangle that has 3 equal 60 degree angles.
an equilateral triangle
Angle sum property of a triangle states that the sum of angles in any triangle should be 180 degree. An angle greater than 90 degree is an obtuse angle. If we have 2 obtuse angles in a triangle, say, 95 degree, 100 degree & 50, it always tend to violate the angle sum property of the triangle. So we cannot have 2 obtuse angles in a triangle.
No, an equilateral triangle as three 60 degree angles.
NEVER!! A triangle has to have exactly 180 degrees between all three angles. One of the angles could equal 90 degrees, but the whole triangle can't be 90 degrees.