# Q 6.     Find the perimeter of each of the following shapes :            (a) A triangle of sides 3 cm, 4 cm and 5 cm.            (b) An equilateral triangle of side 9 cm.            (c) An isosceles triangle with equal sides 8 cm each and third side 6 cm.

(a) The perimeter of a triangle = Sum of all the three sides
= 3cm + 4cm + 5cm
= 12 cm

(b) The perimeter of a eqilateral triangle
= Sum of all the sides of  the triangle
= (9cm +9cm +9cm)
= 27cm

(c) Perimeter of a given isosceles triangle
= Sum of all sides
= 8cm + 8cm +6cm
= 22 cm

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