SOLUTION: Please could you help me with a question that I have been set. The question is the rectangle and triangle that I have been given each have the same perimeter. I have to write an e

Question 174090: Please could you help me with a question that I have been set.
The question is the rectangle and triangle that I have been given each have the same perimeter. I have to write an equation and solve it to find the value of X
The rectangle is 2x 2x 5 5
The triangle are 3x 3x 6
Please could you show me the working out for this to find what X is.
Many thanks
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
You are given 4 sides on the rectangle. Three on the triangle.
The perimeter of a polygon is the sum of its sides.
=
=
You are told the two polygons have the same perimeter. So
collect like terms

So the rectangle is 4 x 5
and the triangle is equilateral (all 3 sides are a length of 6.
Each has a perimeter of 18
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