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The perimeter of an isosceles triangle is p=2a+b. find the numerical value of a if p=10 and b=3

User Umut ADALI
by
8.8k points

1 Answer

4 votes
Plug in what was given into:
p=2a+b
to get:
10=2a+3
subtracting 3 from both sides:
10-3=2a+3-3
7=2a
divide both sides by 2:
7/2= (2a)/2
7/2=a
or
3.5 = a

hope it helps :)
User Bouzid Zitouni
by
8.3k points

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