anonymous
  • anonymous
Find all possible solutions for x such that ∆ABC is congruent to ∆DEF. ∆ABC: sides length 7, 9, x ∆DEF: sides length 7, 10, x-1 The solution to x = _______.
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
Since the triangles are congruent by sides, the sides are equal. We know that in triangle ABC, the sides are 7, 9, and x. In triangle DEF the sides are 7,10, and x-1.
anonymous
  • anonymous
Find all possible solutions for x and y such that ∆ABC is congruent to ∆DEF. ∆ABC: sides length 18, 25, and 6x – 4 ∆DEF: sides length 25, 38, and 5 – y ∆ABC ≅ ∆DEF when x is _________ and y is -------- .
anonymous
  • anonymous
Since it is congruent, the sides must be equal to each other, we know that 7=7, but 9 can't equal 10, so 9=x-1. if we solve for x, x=10

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anonymous
  • anonymous
we apply the same thing here, in the two triangles all of the sides must be equal. In both triangles they have the same side length of 25, since 18 and 38 are not equal to each other, they must be equal to the other corresponding sides. 18=5-y and 38=6x-4
anonymous
  • anonymous
solve for x and y
anonymous
  • anonymous
understand? or nah?
anonymous
  • anonymous
add 5 divide by Y add 4 divide by 6 ????
anonymous
  • anonymous
subtract 5
anonymous
  • anonymous
you would subtract 5 and divide by -1. because you want y to become posititve. and yes you would add 4 and divide by 6.
anonymous
  • anonymous
does this help?
anonymous
  • anonymous
Very much!
anonymous
  • anonymous
Your welcome then (;
anonymous
  • anonymous
Thanks read your testimonial
anonymous
  • anonymous
I dont know what a testimonial is lol

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