Advertisements
Advertisements
प्रश्न
The formula used to find the area of the circle is ________ sq.units
पर्याय
4πr2
πr2
2πr2
πr2 + 2r
Advertisements
उत्तर
The formula used to find the area of the circle is πr2 sq.units
APPEARS IN
संबंधित प्रश्न
The perimeter of a rectangular plot of land is 80 m and its breadth is 16 m. Find the length and area of the plot.
One side of a rectangle is 12 cm long and its diagonal measures 37 cm. Find the other side and the area of the rectangle.
A footpath of uniform width runs all around the inside of a rectangular field 54 m long and 35 m wide. If the area of the path is 420 m2, find the width of the path.
In the following figure, the square ABCD is divided into five equal parts, all having same area. The central part is circular and the ines AE, GC, BF and HD lie along the diagonals AC and BD of the square. If AB = 22 cm, find:
the circumference of the central part.
Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm × 7 cm. Find the area of the remaining card board. (Use π = 22/7).
From a rectangular sheet of paper ABCD with AB = 40 cm and AD = 28 cm, a semicircular portion with BC as diameter is cut off. Find the area of the remaining paper.
A square tank has an area of 1600 cm2. There are four semicircular plots around it. Find the cost of turfing the plots at Rs 12.50 per m2. [Take π = 3.14.]
The radii of two circles are in the ratio 3: 8. If the difference between their areas is 2695π cm2, find the area of the smaller circle.
Diameter of a circular garden is 9.8 m. Find its area.
Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14 cm × 11 cm, then radius of the circle is ______.
