Working out perimeters
This task is about using algebraic expressions to find lengths of a shape.
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a) Write an expression, in its simplest form, for the length of
a) Write an expression, in its simplest form, for the length of
i) side Q:
ii) side R:
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2
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b) i) Write an expression that would allow you to find the length of the perimeter around the shape.
b) i) Write an expression that would allow you to find the length of the perimeter around the shape.
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ii) Simplify your expression.
ii) Simplify your expression.
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c) Use your expression in b) ii) to find the value of
x
for a perimater of 104cm.
Show all your working in your calculation.
c) Use your expression in b) ii) to find the value of
x
for a perimater of 104cm.
Show all your working in your calculation.
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