Similar Triangles Worksheet B IMPORTANT This worksheet relies

Similar Triangles – Worksheet B IMPORTANT! This worksheet relies on accurate scales. See next slide for printing instructions.

IMPORTANT! This worksheet relies on accurate scales. When printing, ensure ‘Scale to Fit Paper’ is deselected. Click: ‘Full Page Slides’ > Deselect ‘Scale to Fit Paper’

Printing To print handouts from slides Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

Real-Size Similar Triangles Each diagram shows a white triangle on top of a similar grey triangle. Measure each triangle. What is the scale factor of enlargement? For each diagram, label both heights and the 2 lengths at the base (a & b) b) a) Scale Factor = a b Scale Factor = d) c) Scale Factor = f) e) Scale Factor = g) Scale Factor =

Real-Size Similar Triangles Each diagram shows a white triangle on top of a similar grey triangle. Measure each triangle. What is the scale factor of enlargement? For each diagram, label both heights and the 2 lengths at the base (a & b) a) b) 3 cm 4 cm 2 cm a 2 cm 1 cm 2 cm Scale Factor = 3 4 cm 2 cm Scale Factor = 2 d) c) Scale Factor = f) e) Scale Factor = g) Scale Factor =

Real-Size Similar Triangles Each diagram shows a white triangle on top of a similar grey triangle. Measure each triangle. What is the scale factor of enlargement? For each diagram, label both heights and the 2 lengths at the base (a & b) b) a) 3 cm 4 cm 2 cm a 2 cm 1 cm 2 cm 4 cm Scale Factor = 3 b 2 cm Scale Factor = 2 d) c) 4 cm 2 cm 3 cm Scale Factor = 2 6 cm 4 cm 1 cm 3 cm Scale Factor = 4 1 cm f) e) 2 cm 4 cm 1 cm 3 Scale cm. Factor = 2 2 cm 1 Scale cm Factor = 1. 5 4 cm Scale Factor = 2. 5 3 cm g) 2. 5 cm 1 cm 6 cm

Real-Size Similar Triangles Each diagram shows a white triangle on top of a similar grey triangle. Measure each triangle. What is the scale factor of enlargement? For each diagram, label both heights and the 2 lengths at the base (a & b) b) a) Scale Factor = a b Scale Factor = d) c) Scale Factor = f) e) Scale Factor = g) Scale Factor =

Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths. co. uk