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This isosceles triangle has two sides of equal length, a.

that are longer than the length of the base 5. The
perimeter of the trianglets 15.7 centimeters. The
equation 2a+b=15.7 can be used to find the side lengths.
If one of the longer sides is 6.3 centimeters what is the
length of the base?


1 Answer

5 votes

Answer:

base = 3.1 cm

Explanation:

b= base

perimeter= p

from the statement we know that p=15.7 cm

moreover:

a=c=6.3 cm

so we have:

15.7=2*a +b

15.7 = 2*6.3 +b

15.7-12.6 = b

b= 3.1 cm

User Jkusachi
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