Find the area enclosed by the circle of radius a.

(a). Calculate the area enclosed by a circle of radius 0.56 m to the correct number of significant figures. (b) . Calculate the area enclosed by a circle of diameter 1.12 m to the correct number of significant figures.

Find the area enclosed by the circular path of an electron in first orbit of hydrogen atom.

Find the area enclosed by the circular path of an electron in first orbit of hydrogen atom.

Find the area enclosed by the circle x^2+y^2=a^2 .

Three concentric circles have radii x cm, 10 cm and 5 cm such that x > 10 > 5. If the area enclosed by circles with radii x cm and 10 cm is the same as the area enclosed by the circles with radii 10 cm and 5 cm, find the area of the largest circle.

Find the area enclosed by the curves y= sqrtx and x= -sqrty and the circle x^(2) + y^(2) =2 above the x-axis.

Find the area of a sector of a circle of radius 28cm and central angle 45^(@) .

Find the area enclosed between the circle x^2+y^2=25 and the straight line x+y=5 .

Find the area enclosed by the curves x^2=y , y=x+2,

A circle is inscribed in a square of side 14 cm. Find the area enclosed between the square and the circle.