# Circle - 6th grade (11y) - math problems

#### Number of problems found: 71

- Circle simple

Circumference of a circle is 6.28. What is the area of the circle? - The diameter

The diameter of a circle is 4 feet. What is the circle's circumference? - Circle from string

Martin has a long 628 mm string . He makes circle from it. Calculate the radius of the circle. - Circle area

Calculate the circle area with a radius of 1.2 m. - Circle - easy 2

The circle has a radius 6 cm. Calculate: - Square and circle

Into square is inscribed circle with diameter 10 cm.What is difference between circumference square and circle? - Circle - simple

The circumference of a circle is 198 mm. How long in mm is its diameter? - Circle

How big is area of circle if its circumference is 80.6 cm? - Radius of the circle

Calculate the radius of the circle whose length is 107 cm larger than its diameter - Calculate

Calculate the area of a circle whose radius is 5 dm. - 22/7 circle

Calculate approximately area of a circle with radius 20 cm. When calculating π use 22/7. - Perimeter to area

Calculate the area of a circle with the perimeter 15 meters. - Diameter to area

Find the area of a circle whose diameter is 26cm. - Radius

Find the radius of the circle with area S = 200 cm². - 6-gon

Perimeter of regular hexagon is 113. Calculate its circumradius (radius of circumscribed circle). - Length of the arc

What is the length of the arc of a circle k (S, r=68mm), which belongs to a central angle of 78°? - Annulus

The radius of the larger circle is 8cm, the radius of smaller is 5cm. Calculate the contents of the annulus. - Central angle

What is the length of the arc of a circle with a diameter of 46 cm, which belongs to a central angle of 30°? - Quadrant II

Calculate the radius of the quadrant, which area is equal to area of circle with radius r = 15 cm. - Quarter circular

The wire that is hooked around the perimeter of quarter-circular arc has length 3π+12. Determine the radius of circle arc.

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