Question

what is a triangle and define its properties

Answer 1

Answer:

a closed figure made up of three line segments is known as triangle.

PROPERTIES:

• The sum of the angles in a triangle is 180°

• The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

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Answer 2

a triangle geometrical enclosed figure which has 3 sides, 3 vertex ...etc...
properties of triangle are
sum of two 2 sides greater than 3rd side, sum of all the angle is 180 .