Find the perimeter of each of the following shapes : 6) An equilateral triangle of side 13 cm. (i) An isosceles triangle with each of equal sides 11 cm and third side 8 cm.
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Step-by-step explanation:
Solution:
(a) The perimeter of triangle = Sum of all sides
= 3 + 4 + 5
= 12 cm
The perimeter of triangle is 12 cm.
(b) The perimeter of an equilateral triangle = Sum of all sides
= 9 + 9 + 9
= 27 cm
The perimeter of triangle is 27 cm.
(c) The perimeter if an isoceles triangle = Sum of all sides
= 8 + 6 + 8
= 22 cm
The perimeter of triangle is 22 cm.
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