Algebraic Expressions in a Composite Rectangle Diagram

Algebraic Expressions in a Composite Rectangle Diagram

IP 1
TGM Original Questions

The figure shows \(6\) identical rectangles of length \(\left( 2x+3y \right)\)cm and breadth \(y\) cm, where \(x\) and \(y\) are positive integers.

  1. Express the following in terms of \(x\) and/or \(y\).
    1. \(p\),
    2. \(m\),
    3. \(n\).
  2. What is the condition for \(y\) when
    1. \(n\) is an integer,
    2. \(n\) and \(x\) are both even?
  3. State a possible value of \(y\) when \(n\) is an even number and \(x\) is an odd number.

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Answer:(a)(i) \(p=(2x+5y)\) cm. (a)(ii) \(m=x\) cm. (a)(iii) \(n=\left(x+\frac{3y}{2}\right)\) cm. (b)(i) \(y\) is even. (b)(ii) \(y\) is a multiple of \(4\). (c) One possible value is \(y=2\).

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