Lesson 1 - Scottsbluff Public Schools

Circumference; diameter: about 60 mm, radius: about 30 mm. Radius; diameter: 120 mm, circumference: about 380 mm. Problem 3. A half circle is joined to an equilateral triangle with side lengths of 12 units. What is the perimeter of the resulting shape? Solution. about 42.84 units. The two sides of the triangle each contribute 12 units and the ... ................
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