Explain the following terms: (i) Triangle (ii) Parts or elements of a triangle (iii) Scalene triangle (iv) Isosceles triangle (v) Equilateral triangle (vi) Acute triangle (vii) Right angled triangle (viii) Obtuse triangle (ix) Interior of a triangle (x) Exterior of a triangle.
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Step-by-step explanation:
Triangle :- it is a polygon which has three close sides .
parts or elements of a triangle :- The basic elements of the triangle are sides, angles, and vertices.
Scalene Triangle :- a triangle which has three sides with all sides with different measures .
isosceles triangle:- a triangle which has three sides with two sides having same measure and third side having different measure .
equilateral triangle:- having all sides with same measure .
acute angle is a angle having less than 90 degree
right angle is an angle having 90 degree
obtuse angle is an angle having more than 90 degree but less than 180 degree .
The interior of the triangle is the set of all points inside a triangle.
An exterior angle of a triangle is equal to the sum of its two opposite non-adjacent interior angles.