9th grade math

posted by .

the triange is 31cm, side 1 and side 2 have equal lenghts, while side 3 is one centimeter shorter than twice then length of side 1, how long is each side?

  • 9th grade math -

    What part of the triangle is 31 cm? The perimeter? Side 3?

  • 9th grade math -

    3rd side= 2x 1st side(shorter)
    1st side=2nd side
    2x+2x=31
    4x=31
    x=31/4=7.75

    3rd side= 2*x-1
    2*7.75-1= 14.5

    1st side and 2nd side= 14.5
    3rd side=2cm

    Ans. 14.5cm, 14.5cm, 2cm

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    The perimeter of a triangle is 26 c,. Side a of the triangle is 3 cm longer than side b. Side c is 1 cm shorter than twice side b. Find the length of each side.
  2. math

    the perimeter of a triangle is 76 centimeters. the second side is twice as long as the first side. the third side is four centimeters shorter than the second side. how long is each side?
  3. ALGEBRA

    The perimeter of a triangle is 76 centimeter. The second side is twice as long as the frist side. The thrid side is four centimeter shorter than the second side. How long is each side?
  4. 8th grade

    Please help me how you get the answer. PLEASE I NEED HELP. A triangle sail has a perimeter of 25 m. Side a is 2 m shorter than twice side b, and side c is 3 m longer than side b. Find the length of each side. Thank you ver much for …
  5. 9th grade

    the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the length of side #1. how long is each side
  6. 8th grade math

    the first side of a triangle measures 3 cm longer then the second side the third side is 4cm shorter then twice the second side the perimeter is 31cm. how long is each side?
  7. math

    2m shorter than twice side b and side c 3m longer than side b find the length of each side
  8. Math

    One side of a triangular banner is 1 ½ times longer than the second side and 2 cm shorter than the third side. The perimeter of the triangle is 98 cm. How long is the shortest side?
  9. math

    One side of the triangular flower garden has length of 4.5 m, the second side is twice as long as the first side. The length of the third side is 3 m less than that of the second side. What is the perimeter of the garden With solution
  10. geometryproblems

    one side of the triangular banner is 1 1/2 times longer than the second side and 2 cm. shorter than the third side. the perimeter of the triangle is 98 cm. how long is the shorter side?

More Similar Questions