# Expression of a variable from the formula + circle - math problems

#### Number of problems found: 117

• Circle - AG Find the coordinates of circle and its diameter if its equation is: ?
• Circle r,D Calculate the diameter and radius of the circle if it has length 26.59 cm.
• Circle's chords In the circle there are two chord length 30 and 34 cm. The shorter one is from the center twice than longer chord. Determine the radius of the circle.
• Circle - simple The circumference of a circle is 198 mm. How long in mm is its diameter?
• Circle chord Calculate the length of the chord of the circle with radius r = 10 cm, length of which is equal to the distance from the center of the circle.
• Equation of circle 2 Find the equation of a circle which touches the axis of y at a distance 4 from the origin and cuts off an intercept of length 6 on the axis x.
• Inscribed circle A circle is inscribed at the bottom wall of the cube with an edge (a = 1). What is the radius of the spherical surface that contains this circle and one of the vertex of the top cube base?
• Inscribed circle The circle inscribed in a triangle has a radius 3 cm. Express the area of the triangle using a, b, c.
• Circle annulus There are 2 concentric circles in the figure. Chord of larger circle 10 cm long is tangent to the smaller circle. What are does annulus have?
• Circle How big is area of circle if its circumference is 80.6 cm?
• Hexagon in circle Calculate the radius of a circle whose length is 10 cm greater than the circumference of a regular hexagon inscribed in this circle. Calculate the radius of the circle whose length is 107 cm larger than its diameter
• Concentric circles There is given a circle K with a radius r = 8 cm. How large must a radius have a smaller concentric circle that divides the circle K into two parts with the same area?
• Perimeter to area Calculate the area of a circle with the perimeter 15 meters.
• Perimeter of the circle Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm2?
• Equation of circle find an equation of the circle with indicated properties: a. center at (-3,5), diameter 20. b. center at origin and diameter 16.
• Find parameters Find parameters of the circle in the plane - coordinates of center and radius: ?
• Quarter circle What is the radius of a circle inscribed in the quarter circle with a radius of 100 cm?
• Quarter of a circle Calculate the circumference of a quarter circle if its content is S = 314 cm2.
• Two annuluses The area of the annular circle formed by two circles with a common center is 100 cm2. The radius of the outer circle is equal to twice the radius of the inner circle. Determine the outside circle radius in centimeters.

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Expression of a variable from the formula - math word problems. Circle Problems.