65s

Calculate lengths in similar 2D shapes

65s Find unknown lengths given two separate similar shapes.

65s Find unknown lengths given two similar triangles with one vertex in common.

65s Find unknown lengths given two similar shapes where one is inscribed the other.

65s Find unknown lengths given two similar shapes where one is inscribed the other and requires subtraction.

22n: Use a written method of division (no remainders)

53s: Calculate angles using parallel lines (including reversing bearings) and provide full geometric arguments

Similar

Congruent

Scale Factor

Shared

Alternate

Corresponding

Vertically Opposite

77s: Determine and use area or volume scale factors for similar 2D and 3D shapes (higher tier only)

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

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
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Move onto 'FUTURE LEARNING' TOPICS if you want to see where this topic goes next
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