When it has 2 equal sides it is an isosceles triangle
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Two. There is a world of this stuff out there.
A right triangle can be an iscosceles or scalene triangle. A right triangle is a triangle that therein has one right angle and 2 acute angles. An isosceles triangle has two sides of the same length and one different.
The area of a triangle = 1/2*base*height = 1/2*5*7 = 17.5 cm2.The fact that it is an isosceles triangle is irrelevant.
Perimeter = x-11+x+x which simplifies to 3x-11
A three-sided shape is called a triangle. There are three types of triangles: equilateral triangles, iscosceles triangles, and scalene triangles. Equilateral triangles have all equal sides and angles; iscosceles triangles have two congruent legs and a base, and scalene triangles do not have any equal sides or angles.