Advertisements
Advertisements
प्रश्न
Find the area of the dining table whose diameter is 105 cm
Advertisements
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
AB is a chord of a circle with centre O and radius 4 cm. AB is of length 4 cm. Find the area of the sector of the circle formed by chord AB.
A rectangular park is 100 m by 50 m. It is surrounding by semi-circular flower beds all round. Find the cost of levelling the semi-circular flower beds at 60 paise per square metre (use π = 3.14).
In the following figure, the shaded area is
ABCD is a rectangle whose three vertices are B (4,0), C (4,3) and D (0, 3). The length of one of its diagonals is
A chord of a circle of radius 10 cm subtends a right angle at the centre. The area of the minor segments (given, π = 3.14) is
The given figures show a rectangle ABCD inscribed in a circle as shown alongside.
If AB = 28 cm and BC = 21 cm, find the area of the shaded portion of the given figure.
Thenmozhi wants to level her circular flower garden whose diameter is 49 m at the rate of ₹ 150 per m2 Find the cost of levelling
The length of the minute hand of a clock is 14 cm. The area swept by the minute hand in 5 minutes is ______.
A pendulum swings through an angle of 30∘ and describes an arc 8.8 cm in length. Find the length of the pendulum in cm.
Is the area of the largest circle that can be drawn inside a rectangle of length a cm and breadth b cm (a > b) is πb2 cm2? Why?
