Question

3) Find the perimeter of
a) An equilateral triangle whose side is 3.5cm
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Answer 1

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P = 3a = 3·3.5 = 10.5cm

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Answer 2

Answer:

10.5 cm

Step-by-step explanation:

one side = 3.5 cm

perimeter = 3.5 ×3

=10.5