There are different types of triangles on the basis of sides and measures of their angles.
Type of Triangles on the basis of Sides
Scalene Triangle : A triangle whose all sides of different lengths is called Scalene Triangle.
In the above figure we can see that AB ≠ BC ≠ AC.
Isosceles Triangle : A triangle whose any two sides are equal is called an Isosceles Triangle.
Here, in the ΔABC, two sides are equal, AB = AC.
Equilateral Triangle : A triangle whose all sides are equal to one another, is called an Equilateral Triangle.
In the ΔABC, all the three sides are equal, AB = BC = AC
Q.1 Classify the following triangles on the basis of their sides mentioned below:
Q.2 Name the type of the triangle.
a) AB = 5 cm; BC = 3 cm and AC = 5 Cm.
b) PQ = 8 cm; QR = 8 cm and PR = 8 cm.
c) XY = 6 cm; YZ = 4 cm and XZ = 5 cm.
d) LM = 2 cm; MN = 4 cm and LN = 3 cm.
e) RA = AT = RT = 6.4 cm
f) ST = 6.1cm; UT = 5.8cm and SU = 4.6cm
g) RM = MO = 8.2cm and RO = 9cm