Question

definition of triangle with formula of area and perimeter ​

Answer 1

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Area or Perimeter of Triangles and Quadrilaterals. Perimeter is the distance around a shape. To find the perimeter of any two dimensional shape, find the sum of the lengths of all the sides. ... Therefore, the area of a triangle is base times height divided by two. Remember that any of the three sides can be the base.

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Answer 2

Answer:

it is a three side polygon there three types of triangle 1 is equilateral triangle in which all the sides are equal and all the angles are of 60 degree in second there is isosceles triangle in which only two sides are equal and base angles are equal in third there is scalene triangle in which all the sides and angles are of different lengths and measures.

Step-by-step explanation:

area ( tri.) = 1/2 base into height