SOLUTION: The base of an isosceles triangle is 3 less than twice the length of one of its sides with equal length. The perimeter of the triangle is 37cm. Find the length of its base. Thank y

Algebra ->  Triangles -> SOLUTION: The base of an isosceles triangle is 3 less than twice the length of one of its sides with equal length. The perimeter of the triangle is 37cm. Find the length of its base. Thank y      Log On


   

Question 340302: The base of an isosceles triangle is 3 less than twice the length of one of its sides with equal length. The perimeter of the triangle is 37cm. Find the length of its base. Thank you.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let S be the equal length side.
B=2S-3
B%2BS%2BS=37
Substituting,
2A-3%2BS%2BS=37
4S=40
S=10cm
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B=2%2810%29-3
B=17cm