Question

Find the perimeter of a triangle whose sides are:
(a) 21 cm, 24 cm and 30 cm
(b) 14 m, 17 m and 20 m
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Answer 1

Answer:

the answer is add up all the lengths

Step-by-step explanation:

21+24+30=75 and another 14+17+20=51cm

Answer 2

Answer:

perimeter=sum of all sides

a 21+24+30=75

b 14+17+20=51