In Figure, a square of diagonal 8 cm is inscribed in a circle. Find the area of the shaded region.
Find the radius of a circle whose circumference is equal to the sum of the circumferences of two circles of radii 15 cm and 18 cm.
Area of a sector of a circle of radius 36 cm is 54 π cm2. Find the length of the corresponding arc of the sector.
In Figure, a circle of radius 7.5 cm is inscribed in a square. Find the area of the shaded region (Use π = 3.14)
Find the diameter of the circle whose area is equal to the sum of the areas of the two circles of diameters 20 cm and 48 cm.
Is it true to say that area of a square inscribed in a circle of diameter p cm is p2 cm2? Why?
Areas of two circles are equal. Is it necessary that their circumferences are equal? Why?
Circumferences of two circles are equal. Is it necessary that their areas be equal? Why?
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