Question

A) ACTIVITY :
1. Types of triangles - based on sides (Textbook page 77)
Measure the sides of the following triangles in centimetres, using a divider and ruler. Enter the
lengths in the following table. 'Length of segment AB' is written as I (AB). Write the type of eac
triangle.
P
X
A
R
Q
Y
Z
B
С
In ABC
In PQR
In ZXYZ
I (AB) =
I (QR)
I XY =
1 YZ =
I (PQ)
-
I (BC) =
I (AC) =
I XZ =
I (PR) =
Type of triangle
Type of triangle :
Type of triangle :
de 78)​

Answer 1

Classification of Triangles on the Basis of their Sides is as follows :

(1) Right-Angled Triangle - Hypotenuse is the Longest Side.

(2) Isosceles Triangle - Two Sides are Equal and One Side (Base of Triangle) is Not Equal.

(3) Scalene Triangle - All Three Sides are Unequal.

(4) Equilateral Triangle - All Three Sides are Equal.