Class 6 Maths Chapter 5 Exercise 5.6 Pdf Notes NCERT Solutions

Class 6 Maths Chapter 5 Understanding Elementary Shapes Exercise 5.6 pdf notes:-

Exercise 5.6 Class 6 maths Chapter 5 Pdf Notes:-

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What do you find?
Triangles in which all the angles are equal.
If all the angles in a triangle are equal, then its sides are also . …………
Triangles in which all the three sides are equal.
If all the sides in a triangle are equal, then its angles are. ……….. .
Triangle which have two equal angles and two equal sides.
If two sides of a triangle are equal, it has . ………… equal angles.
and if two angles of a triangle are equal, it has ……. equal sides.
Triangles in which no two sides are equal.
If none of the angles of a triangle are equal then none of the sides are equal.
If the three sides of a triangle are unequal then, the three angles are
also…………. .

Take some more
triangles and verify these.
For this we will again
have to measure all the
sides and angles of the
triangles.
The triangles have
been divided into
categories and given
special names. Let us see
what they are.
Naming triangles based on sides
A triangle having all three unequal sides is called a Scalene Triangle [(c), (e)].
A triangle having two equal sides is called an Isosceles Triangle [(b), (f)].
A triangle having three equal sides is called an Equilateral Triangle [(a), (d)].
Classify all the triangles whose sides you measured earlier, using these
definitions.
Naming triangles based on angles
If each angle is less than 90°, then the triangle is called an acute angled triangle.
If any one angle is a right angle then the triangle is called a right angled
triangle.
If any one angle is greater than 90°, then the triangle is called an obtuse
angled triangle.

(c) a right angled isosceles triangle.
(d) a scalene right angled triangle.
Do you think it is possible to sketch
(a) an obtuse angled equilateral triangle ?
(b) a right angled equilateral triangle ?
(c) a triangle with two right angles?
Think, discuss and write your conclusions.

Answers

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