Mathematics Magazine for Grades 1-12
In the practical
use of our intellect, forgetting is as important as remembering.
A = angle D
Problems with solutions.
1. Triangles CDE and NOP are similar. The perimeter of smaller triangle CDE is 133. The lengths of two corresponding sides on the triangles are 53 and 212. What is the perimeter of NOP?
The perimeter of NOP:
1. (-3x4 + 36x2) ÷ (3x)
2. (-29x3 + 116x) ÷ (-29)
3. (-8x4 + 76x3 - 192x2 + 60x) ÷ (-4x)
4. (-120x5 + 84x4 + 92x3 + 400x2 + 224x) ÷ (4x)