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6. Find the area of the triangle whose vertices are (6, 4), (3, 4), and (6, 1) ... The area of a circle is 78.5 sq. cm. What is the radius of the circle? (Use 3.14 for π). 3. The circumference of a circle is 208π. Find the diameter. 4. The perimeter of a rectangle is 165 ft. The height of … ................
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