77s

Higher tier only

Determine and use area or volume ratios (or scale factors) for similar 2D and 3D shapes

77s Relationship between scale factors of length and area.

77s Relationship between scale factors of length and volume.

77s Find the surface area of a similar solid when the volumes are given.

77s Find the volume of a similar solid when the surface areas are given.

77s Find the surface area/volume of a similar solid when the scale factor of surface area/volume is given in ratio form.

33n: Evaluating powers and roots and identifying square or cube numbers

65s: Calculate lengths in similar 2D shapes

Similar

Ratio

Scale Factor

Area

Volume

Mass

Density

89s: Calculate the volume of a frustum using similar triangles or find the height of a cone formed from a given sector (higher tier only)

95s: Proving congruency or similarity of triangles within more elaborate diagrams (including in circles) (higher tier only)

Similar shapes - Area

Similar shapes - volume

How to use this page

Review the KNOWLEDGE ORGANISER TILE
Watch the MET VIDEO
REVIEW THE 'PRIOR LEARNING' TOPICS (if needed)
COMPLETE QUESTIONS- click on the MyMaths, Corbett Maths or a Memrise quiz
MARK your work
Move onto 'FUTURE LEARNING' TOPICS if you want to see where this topic goes next
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