the perimeter of an isoseles triangle is p=2a+br find the numeraical value of a if p=10 and b=3

Question

in the equation c2-4=0,cis equal to

Answer 1

Substituting 10 for p and 3 for b, we know that 10=2a+3r. Since we don't know r or a, we can't get an exact value for either one. We can solve for a, though, like this:

Subtract 3r from both sides to get 10-3r=2a.

Divide both sides by 2 to get (10-3r)/2 =a

Hope that helps!