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What is the measure of the third angle of a triangle if one angle measures 45 degrees and the other measures 85 degrees?
Since the sum of a triangles angles equals 180, 180-45-85=50. The angle is 50 degrees.
What is the area of a triangle if angle a equals 42 degrees angle b equals 87 degrees and angle c equals 24 degrees?
A triangle with interior angles of 42, 87 and 24 degrees doesn't exist because the angles add up to 153 degrees whereas the interior angles of any triangle always add up to 180 degrees.
Is the sum of the interior angles of a quadrilateral equals 340 degrees?
NO
What is the sum of the interior angles of a polygon with 5 sides?
540 degrees. Draw line segments to connect vertices and make trianlges. You will have three triangles. Since each triangle has 180 degrees and there are three of them (180 x 3) the answer is 540 degrees. A square or rectangle has four right angles of 90 degrees each (90 x 4) and therefore it is 360 degrees. You can make two triangle when you draw a diagonal line. Each triangle is 180 degrees and equals 360 degrees.
Two angles whose sum equals 180 degrees?
Are said to be supplementary.
The angles of all triangles equals how many degrees?
180
When are supplementary angles congruent?
Supplementary angles are congruent when each angle measures 90 degrees. This occurs because supplementary angles are defined as two angles whose sum equals 180 degrees. Therefore, if both angles are equal and their sum is 180 degrees, they must each be 90 degrees.
Do all triangles equals 180?
A triangle doesn't equal 180, but the sum of the internal angles of every triangle equals 180 degrees.
Can a trianle have a right angle?
A triangle has three sides and three angles. Right angled triangles are triangles in which the measure of one angle equals 90 degrees
What do all the angels in a quadrilateral equal to?
The sum of all the interior angles in a quadrilateral equals 360 degrees. This can be derived from the fact that a quadrilateral can be divided into two triangles, each having a sum of interior angles equal to 180 degrees. Therefore, 180 degrees + 180 degrees equals 360 degrees for the quadrilateral.
What is the measure of one interior angle of a 21-agon?
Assume each side forms the base of an isosceles triangle with its peak at the center, so the entire figure is 21 triangles with their tips all meeting. The center has 360 degrees divided by the 21 tips of the triangles, so each tip is 360/21 = 17.143 degrees. This means that the base angles of each triangle are 81.429 degrees (180 - 17.143 = base angles sum to 162.857, divide by two since they're congruent and each angle = 81.429 degrees). Since the interior angle equals the sum of the base angles of two adjacent triangles, the answer is 81.429 * 2 = 162.857 degrees.
Sum of the angles of triangles?
The sum of the internal angles always equals 180o
How do you prove the pentagram angles inside a scalene pentagon equl 180?
To prove that the sum of the angles formed by the intersection of the diagonals within a scalene pentagon equals 180 degrees, you can use the fact that any polygon can be divided into triangles. In a pentagon, there are five sides, and thus it can be divided into three triangles by drawing diagonals. The interior angles of these triangles sum to 540 degrees, and since the angles at the vertices of the pentagon contribute to this sum, the angles formed by the intersection of the diagonals can be shown to sum to 180 degrees by subtracting the angles at the vertices from 540 degrees and considering the properties of linear pairs.
What is the sum of the angles in equals side three triangles?
the sum of the angle sin one triangle is 180, so the sum in three triangles would be 180x3, which is 540 degrees. Hope i helped XD
How is a square similar to a rhombus?
they are both 4 sided figueres...both figures angles add up to 360 degrees, they both have congruent angles (square has 4 equals,rhombus has 2 pairs)
How many degres are there in a triangle?
The easiest way to find out how many degrees in any shape is 180*(n-2) where n equals the number of angles in the shape. Thus, triangles have 180 degrees.
What is the total interior angle of aregular polygon if t equals 20 triangles can be drawn inside the polygon?
The total angles will be 3600 degrees, because each triangle will have 180 degrees total.
