1. A triangle has side lengths of (1.9x +6.2y) centimeters,
(2.5x + 8.3w) centimeters, and
(1.6w - 5.1y) centimeters

Part A) Write an expression that presents the perimeter, in
Centimeters, of the triangle.

Show your work



Part B) Write an equivalent expression to represent the
Perimeter from part A. By factoring out the greatest common factor.

Show your work



Create an equivalent expression by simplifying the
Expression below.

Show your work.

-1/2[-3/2c + 6c + 1]- 3c

geometry: triangles

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answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

probably .5

i can on others if necessary.