The legs of an isosceles triangle have lengths x + 1 and -x + 7 . The base has length 3x - 3. What is the length of the base?

2 answers:

8 0

Since you've told us that this is an isosceles triangle, we know that the 'legs' have equal length. So we can write

      x + 1 = -x + 7

Add 'x' to each side: 2x + 1 = 7

Subtract 1 from each side: 2x   =   6

Divide each side by 2 : x    =   3

Now, if the length of the base is   3x - 3 ,
that length is

   3(3) - 3 = 6 .

Y_Kistochka [10]3 years ago

4 0

Answer:

the answer is 6 i took the test

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