Mathematics Magazine for Grades 112 



7/2004 

In the practical
use of our intellect, forgetting is as important as remembering. Grade 10
Theory:Similar
Triangles
angle
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? Solution: The perimeter of NOP:
= 532 Proposed Exercises:Complete. 1. (3x^{4} + 36x^{2}) ÷ (3x) 2. (29x^{3} + 116x) ÷ (29) 3. (8x^{4} + 76x^{3}  192x^{2} + 60x) ÷ (4x) 4. (120x^{5} + 84x^{4} + 92x^{3} + 400x^{2} + 224x) ÷ (4x)  