The length of the third side is the same as
the length of either of the other two sides.
Two sides of a triangle do not, automatically, give you the measure of the third side. Further information about the triangle is required.
20.
Doesn't it depend on what type of triangle it is? And which sides you are measuring? And which side it's laying on?
This will depend upon the type of triangle. For an equilateral, all sides will be the same length. For a right angle triangle, the formula a2 + b2 = c2 is used.
Well all you have to do, is add the two 4's up, and you obviously get 8, and then you subtract 8 from 180 to get your third side.... which is 172º.
We use the law of Cosines to be able to find : 1. The measure of the third side, when the measure of two sides and the included angle of a triangle ABC are known. 2. The measure of any angle, when the measure of the three sides of a triangle ABC are known.
It is not possible to determine the measure of an angle if the lengths of two sides are given.
The sum of the measures of two sides of a triangle is greater than the measure of the third side. (i HOPE IT CAN HELP!) =) --jiandra lee Lopez becina
angle with the greatest measure
The length of the third side of an equilateral triangle is the same as the lengths of both of the other two sides.
Literally speaking, an isosceles triangle is one which has two sides of equal length. Generally speaking, the third side should be of a different length. [If the third side is also the same length then the triangle would be equilateral, but that may be considered a special case of an isosceles triangel.] Equality of two sides implies that the two angles at the ends of the third side are of equal measure. This may be used as a working definition of an isosceles triangle.
An equalateral triangle