in triangle def side de equals 5 and angle d equals 55 find fe
Anglw C is 63 degrees because the 3 interior angles of a triangle add up to 180 degrees
The sum of a triangle equals 180 degrees
This cannot be a triangle. The sum of the angles inside a triangle is 180 degrees. Contrary to basic Trigonometry, the above statement is actually incorrect. If a circle is placed upon a spherical surface (Such as the earth) the measure of it's angles can equal more than 180 degrees. And if the triangle is placed upon that of the inside of a bowl (Don't know a technical name), then the measure of it's angles can equal less than 180 degrees. So in the case of your triangle which equals 177 degrees, your triangle is placed in a Bowl type surface. I don't know if that was the answer you were looking for because your question is very incoherent. Sorry if I didn't answer anything!
49 degrees
5
67 degrees
The sum of all angles in any triangle equals 180 degrees.
61 degrees (180 degrees in a triangle)
This is not a triangle. All three angles of any triangle must always add up to 180o. The angles you gave add up to only 59.9o.
It is 12.2 degrees.
all triangles equal 180 degrees so 180/3 equals 60 so, the measure of each angle of an equilateral triangle is 60 degrees.
96˚all angles to a triangle equals 180˚
If two angles of a triangle are complementary, it means they add up to 90 degrees. Since the sum of the angles in a triangle is always 180 degrees, the third angle would be 180 degrees minus 90 degrees, which equals 90 degrees. Therefore, the measure of the third angle in this triangle would be 90 degrees.
Anglw C is 63 degrees because the 3 interior angles of a triangle add up to 180 degrees
45 degrees
If you are really talking about a closed triangle ABC, then the length of side "a" (given as 19) does not matter in the calculation. Sum of the angles of a triangle is 180 degrees. Angle B and C add up to 15 + 65 = 80 degrees. Hence angle A is (180 - 80) = 100 degrees
Well if your talking about a regular triangle (equilateral triangle) it is because if you measure it then it will always equal 60 degrees on each turn. Which then Equals 180 (This is for all triangles).