Question
Which of the following crop is a source methane and
nitrous oxide emission into the atmosphere?Solution
Rice or paddy fields are considered one of the most important sources of methane and nitrous oxide emissions, which contribute considerably to global warming.
- Calculate the area of a circle whose radius is (7/8)ᵗʰ of the side of a square whose area measures 1,600 cm². (Take π = 3.14)
Two tangents are drawn from an external point P to a circle with center O and radius r. If the distance between P and O is 2r, find the angle subtended ...
- A rhombus has diagonals in the ratio 4:3 and an area of 2,400 cm². A circle is drawn using the smaller diagonal of the rhombus as its diameter. What is th...
- The area of a rhombus is 1,600 cm², and the lengths of its diagonals are in the ratio 5:4. A circle is constructed with the smaller diagonal as the diamet...
Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre.Â
The area of a sector of a circle is 144π cm², and the radius of the circle is 24 cm. Find the angle of the sector in radians.
Find the area of largest square that can be inscribed in a circle of radius ‘r’.
If the lengths of the diameters of two concentric circles are 16cm and 18cm respectively, then what will be the area of the region between them?
Find the area of the sector of a circle with radius 14 cm and central angle 90°.
A circular racing track has been developed in a field. If the difference between the outer circumference and the inner circumference of the racing track...
