The perimeter of a triangle of sides 8 cm, 7 cm and 10 cm is
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Find the perimeter of :
(a) a scalene triangle with sides 7 cm, 8 cm and 9 cm
(b) an equilateral triangle of side 2.4 m
(c) an isosceles triangle with equal sides of 12 cm each and the third side 9 cm.
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We know perimeter of any triangle is the sum of lengths of its sider.
a) length of sides are 7cm,8cm, and 9cm
perimeter =(7+8+9)cm
=24cm
b) Triangle is equilateral with one side as 2.4m
perimeter =(2.4+2.4+2.4)m
=7.2m
c) equal side are of 12cm and other is of 9cm
perimeter =(12+12+9)cm
=33cm
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8+7+10=25
25cm
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