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A circle of radius r and centre O, is inscribed in a triangle with edges of lengths a, b and c.
Find the area and circumference of the circle.
Find the area and the perimeter of the triangle.
What do you notice about the ratios of the two areas and the ratios […]
Which is longer, the dashed portion of the square or the circumference of the circle?
Explain your reasoning.
Click here for Teacher’s Notes
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