the semi perimeter of the triangle is 10 cms if one of its sides is 5 cms and 7 cms respectively then it's third sides __________
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Answer:
8
Step-by-step explanation:
sp =10 cm
side A= 5
side B=7
side C is to be found = x
sp =a+b+c/2
10= 5+7+x/2
10x2 =5+7+x
20=12+x
20-12=x
8= x
x= 8
third side is 8 cm
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