6th Maths : Term 2 Unit 4 : Geometry
Chapter Review and Core Concepts
Summary
•
[Image of different types of triangles]
A closed figure formed by three line segments is called a triangle.
•
A triangle has 3 sides, 3 angles and 3 vertices.
•
[Image of scalene, isosceles and equilateral triangles]
Based on the sides of triangles, we can classify triangles into 3 types as scalene triangle, isosceles triangle and equilateral triangle.
•
[Image of acute, right and obtuse angled triangles]
Based on the angles of triangles, we can classify triangles into 3 types as acute angled triangle, right angled triangle and obtuse angled triangle.
•
In a triangle, the sum of any two sides is greater than the third side. This is known as Triangle Inequality property.
•
Sum of three angles of a triangle is 180°.
•
Parallel and Perperndicular lines can easily be drawn using set squares.
•
The distance between a set of parallel lines always remains the same.