How do you find the third side of an obtuse triangle?

Square the length of the side opposite the obtuse angle. For the example, if the length is 4, then squaring it results in 16. Subtract the combined squares of the adjacent sides by the square of the side opposite the obtuse angle. For the example, 16 subtracted from 13 equals -3.

How do you find the length of the sides of an obtuse triangle?

Explanation: Rule – the length of one side of a triangle must be greater than the differnce and less than the sum of the lengths of the other two sides. are 15 and 5. The length of the third side must be greater than 15-5 or 10 and less than 15+5 or 20.

How do you find the area of an obtuse triangle?

Area of an obtuse angle triangle = ½ * b * h , where b is the base and h is the height of the triangle. , i.e A = √(S(S-a)(S-b)(S-c)), where s is the semiperimeter of the triangle and a,b,c are the three sides of the triangle.

How do you know that a certain side is the longest side in obtuse triangle?

The longest side of an obtuse triangle is the one opposite the obtuse angle vertex. An obtuse triangle may be either isosceles (two equal sides and two equal angles) or scalene (no equal sides or angles). An obtuse triangle has only one inscribed square.

How do you know if a triangle is obtuse?

An acute triangle has three angles that each measure less than 90 degrees. An obtuse triangle is a triangle with one angle that is greater than 90 degrees.

Why is a triangle called an obtuse triangle?

An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Acute and obtuse triangles are the two different types of oblique triangles — triangles that are not right triangles because they have no 90° angle.

What is the length of the longest side of an obtuse triangle?

Two sides of an obtuse triangle measure 10 inches and 15 inches. The length of longest side is unknown. What is the smallest possible whole-number length of the unknown side? Which classification best represents a triangle with side lengths 6 cm, 10 cm, and 12 cm? An acute triangle has two sides measuring 8 cm and 10 cm.

What is the length of the third side of a triangle?

However, the third side, which has length 12 millimeters, is of different length. Since the triangle has exactly two congruent sides, it is by definition isosceles, but not equilateral. A triangle has sides of lengths one and one half feet, twenty-four inches, and one yard.

How many congruent sides does a triangle have?

These two sides have the same length. However, the third side, which has length 12 millimeters, is of different length. Since the triangle has exactly two congruent sides, it is by definition isosceles, but not equilateral. A triangle has sides of lengths one and one half feet, twenty-four inches, and one yard.

How do you find the hypothenuse of a right triangle?

A right triangle has two sides perpendicular to each other. Sides “a” and “b” are the perpendicular sides and side “c” is the hypothenuse. Enter the length of any two sides and leave the side to be calculated blank. Please check out also the Regular Triangle Calculator and the Irregular Triangle Calculator.