You can split a rectangle into 2 right-angled triangles. Image caption, STEP 2: Use the compass to draw a circle. Put a dot where the compass rested and use the ruler to draw a horizontal line ...
Circles, sectors and arcs - Edexcel The circumference of a circle is its outside edge ... to calculate the length of any side in a right-angled triangle. Pythagoras’ theorem can be applied ...
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