Advertisements
Advertisements
प्रश्न
Find the area of the dining table whose diameter is 105 cm
उत्तर
Diameter of the dinig table (d) = 105 cm
∴ Radius r = `"d"/2`
= `105/2` cm
Area of the circle = πr2
= `22/7 xx 105/2 xx 105/2`
= 8662.5 sq.cm
Area of the dinning table = 8662.5 cm2
APPEARS IN
संबंधित प्रश्न
The base of an isosceles triangle measures 80 cm and its area is 2 `360 . cm^2` Find the perimeter of the triangle.
Find the area and perimeter of a square plot of land whose diagonal is 24 m long.
The circumference of a circle is 100 m. The side of a square inscribed in the circle is
ABCD is a field in the shape of a trapezium, AD || BC, ∠ABC = 90° and ∠ADC = 60°. Four sectors are formed with centres A, B, C and D, as shown in the figure. The radius of each sector is 14 m. Find the following:
- total area of the four sectors,
- area of the remaining portion, given that AD = 55 m, BC = 45 m and AB = 30 m.
The length of an arc of the sector of angle θ° of a circle with radius R is
If a square in inscribed in a circle, find the ratio of the areas of the circle and the square.
Two circles touch externally. The sum of their areas is 130π sq. cm and the distance between their centers is 14 cm. Find the radii of the circles.
In a grassland, a sheep is tethered by a rope of length 4.9 m. Find the maximum area that the sheep can graze
If the perimeter of a semicircular protractor is 72 cm where `pi = 22/7`, then the diameter of protractor is ____________.
In figure, a square of diagonal 8 cm is inscribed in a circle. Find the area of the shaded region.