Yes. It always does, in every triangle.
The interior angles of a triangle must lie within the range (0, 180) degrees. For all other polygons, the interior angles must be in the range (0, 360) excluding 180 degrees.
The sum of all inner angles within a triangle is 180 degrees.
Because the 3 angles within a triangle add must up to 180 degrees and 2 right angles add up to 180 degrees
The 4 interior angles of a quadrilateral add up to 360 degrees
Interior angles are formed by the intersection of two lines or line segments within a shape. In polygons, the sum of the interior angles can be calculated using the formula ((n-2) \times 180) degrees, where (n) is the number of sides. For example, a triangle has a total of 180 degrees, while a quadrilateral has 360 degrees. The maximum interior angle for any polygon can approach but never exceed 180 degrees, while the sum of angles for larger polygons can total up to 900 degrees or more, depending on the number of sides.
The interior angles of a triangle must lie within the range (0, 180) degrees. For all other polygons, the interior angles must be in the range (0, 360) excluding 180 degrees.
The three interior angles of any triangle add up to 180 degrees and they can be measured with a protractor.
The sum of all inner angles within a triangle is 180 degrees.
Because the 3 angles within a triangle add must up to 180 degrees and 2 right angles add up to 180 degrees
The 4 interior angles of a quadrilateral add up to 360 degrees
Interior angles are formed by the intersection of two lines or line segments within a shape. In polygons, the sum of the interior angles can be calculated using the formula ((n-2) \times 180) degrees, where (n) is the number of sides. For example, a triangle has a total of 180 degrees, while a quadrilateral has 360 degrees. The maximum interior angle for any polygon can approach but never exceed 180 degrees, while the sum of angles for larger polygons can total up to 900 degrees or more, depending on the number of sides.
No. Within a triangle, the sum of all of the angles must equal 180 degrees. All three angles are acute (60 degrees) in an equilateral triangle, while only two are in a right triangle, the other being a right angle (90 degrees). There obviously could not be three right angles (270 degrees).
The sum of the interior angles is 540 degrees. Within that constraint the angles can have any value.
a triangle that all the angles within it are between 30 and 120 degrees. an equilateral triangle is ideal
The sum of the interior angles is (12-2)*180 = 1800 degrees. But within that constraint, each angle can be anything between (but excluding) 0 and 360 degrees.
Think of the 20 identical triangles that are formed inside the polygon when you draw line segments from the centre of the polygon to each of the polygons corners. The angles of those triangles at the centre of the polygon add to 360 degrees, and there are 20 of them. Therefore, each of the angles of the triangles at the centre is 360 / 20 = 18 degrees. The angles within each triangle add to 180 degrees. Therefore the other two angles within each triangle, away from the centre of the polygon, add to 180 - 18 = 162 degrees. The two angles are equal. Therefore each angle is 162 / 2 = 81 degrees. Each interior angle of the 20-sided polygon consists of two of these angles. Therefore, the interior angle is 2 x 81 or 162 degrees.
The interior angles of a quadrilateral must always add up to 360 degrees.