Perimeter

1. PERIMETER
AJITESH PATRO

2. DEFINITION
 Perimeter can be defined as the path or the boundary
that surrounds a shape.
 The word perimeter has been derived from the
Greek word 'peri' meaning around, and 'metron'
which means measure.
 Perimeter is the total length of the sides.

3. SHAPES
• TRIANGLE
• SQUARE
• RECTANGLE
• PENTAGON
• CIRCLE

4. TRIANGLE
a b
c
1. PERIMETER = a + b + c
2. PERIMETER = 5 + 5 + 6=16 cm
3. PERIMETER OF GIVEN
TRIANGLE IS 16 cm.
5cm 5cm
6cm

5. SQUARE
a= 10 CM
b= 10 CM
c= 10 CM
d= 10 CM
1. PERIMETER= a + b + c + d
2. PERIMETER=10+10+10+10=40cm
3. PERIMETER OF GIVEN
SQUARE IS 40 cm.

6. RECTANGLE
b= 10 cm
d= 10 cm
c= 5 cma= 5 cm
1. PERIMETER= a + b + c + d
2. PERIMETER= 5+10+5+10=30cm
3. PERIMETER OF GIVEN
RECTANGLE IS 30 cm.

7. PENTAGON
b= 9 cm c= 10 cm
a= 8 cm d= 11 cm
e= 12 cm
1. PERIMETER= a + b + c + d + e
2. PERIMETER= 8+9+10+11+12=50cm
3. PERIMETER OF GIVEN PENTAGON IS
50 cm.

8. CIRCLE
10cm
5cm
= 3.14
PERIMETER OF THIS CIRCLE IS =3.14x d[10cm]= 31.4cm