Two polygons are congruent and the perimeter of the first polygon is 30 cm. If the sides of the second polygon are consecutive integers (x, x+1, x+2, x+3, etc.), what value of x makes the polygons into congruent triangles? Use x as the smallest side.

Question

directrix · Answer

Corresponding sides of congruent triangles are congruent. Therefore, the perimeters would be equal.

directrix · Answer

Let x be the smallest side of the second triangle.
x, x+1, and  x+2 are consecutive integers.

x + x+1 + x+2 = 30

anonymous · Answer

thanks i think i can solve it now!

directrix · Answer

Okay, that's great.