Algebra

posted by .

There are two similar triangles XYZ, and ABC. If x = 12 and z = 3c, find a. How do I work with that problem when z = 3c?

  • Algebra -

    Similar are proportional.
    12 is to a as 3c is to c
    cross product 12c = 3ac
    divide both sides by 3c and a = 4

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. geometry

    in a right triangle ABC, if ab is 14 and bc is 12 wut is bd?
  2. Algebra

    There are two similar triangles XYZ, and ABC. If x = 8, c = 5, and y = b, find z and a. How am I suppose to solve this problem if y = b?
  3. Math/Solving side lengths of similar figures!!!

    I have to find out what (x) equals. it shows me two triangles. ABC and XYZ. XYZ's sides are X-6 Y-10 and Z-8. ABC's sides are A-(x) B-25 and nothing for C. i need to find the value of (x). I'm expelled from school, and I get taught …
  4. HELP!!!!RIGHT NOW!!!!

    Which set of side lengths shows similar triangles?
  5. geometry

    if triangle abc is similar to xyz and the area of abc is 8 square inches, what is the area in square inches of xyz. the triangles are right isoseleces triangles and the base of abc is 4. the base of xyz is 10.
  6. Math

    Which set of side lengths shows similar triangles?
  7. geometry triangles

    The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides?
  8. geometry

    The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides?
  9. Math

    How do I determine which two triangles on a graph are congruent. ∆QRS and ∆DEF or ∆ABC and ∆XYZ. i found the coordinates of both sets: QRS Q(-2,5), R(-2,1), S(-5, 1) DEF D(5,-5), E(5,-2), F(2,-2) or ABC A(4,5), …
  10. Math

    Reiny ..thanks for the formula and example. I tried it and i get that both sets of triangles are congruent but it is multiple choice with one answer. I don't know what i am doing wrong. How do I determine which two triangles on a graph …

More Similar Questions