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5.05 Finding dimensions from perimeters or areas

Interactive practice questions

Find the side length $y$y indicated on the diagram. The perimeter of the shape is $29$29 m.

Easy
< 1min

Find the side length $d$d indicated on the diagram. The perimeter of the shape is $35$35 cm.

Easy
< 1min

Find the side length $d$d indicated on the diagram. The perimeter of the shape is $22$22 m.

Easy
< 1min

Find the remaining side length of a triangle if the perimeter of the shape is $64$64 mm and two of the sides measure $19$19 mm and $21$21 mm.

Easy
< 1min
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Outcomes

1.2.2.1

solve practical problems requiring the calculation of perimeters and areas of circles, sectors of circles, triangles, rectangles, trapeziums, parallelograms and composites

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