The semi - Perimeter of a triangle whose sides are 20cm, 15cm, and 9cm is
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Answered by
6
Answer:
semi perimeter of a triangle=sum of all sides/2
=20+15+9/2
=44/2
=22cm
Step-by-step explanation:
hope it helps you☺️
Answered by
4
Answer:
27
Step-by-step explanation:
s = a+b+c /2
s = 20+15+19/2
=54/2
= 27
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