Question

Find the length of the base of a triangle when one side is 2cm shorter than the base and the other side is 3cm longer than the base. The perimeter is greater than 19cm

Answer 1

Answer:

  > 6 cm

Step-by-step explanation:

Let b represent the length of the base in cm. Then the perimeter is ...

  b + (b -2) + (b +3) > 19

  3b +1 > 19 . . . . . . collect terms

  3b > 18 . . . . . . . . subtract 1

  b > 6  . . . . . . . . . divide by 3

The length of the base is greater than 6 cm.