Question
The Blind river dolphins are found in the water
of:Solution
The presence of Susu (also called blind dolphin) in the Ganga-Brahmaputra river is an indication of the health of the river. The Ganges river dolphins can only live in freshwater and are essentially blind. The untreated industrial and urban wastes with a high amount of harmful chemicals are killing the species.
- Find the area of a circle whose radius is (4/5)ᵗʰ of the side of a square whose area is 2,025 cm². (Use π = 3.14)
In a circle, two chords AB & CD are produced at P which is outside the circle . If PA= 18 cm, AB= 12 cm , PC = 6 cm then find CD.
- The circumference of the circle is 110 cm while the length of the rectangle is 6 cm more than the radius of the circle. Find the perimeter of the rectangle...
- The circumference of a circle is 176 cm while the length of the rectangle is 9 cm more than the radius of the circle. Find the perimeter of the rectangle i...
In a triangle, PT is tangent and PAB is secant which cuts on a circle at points A & B. If PT= 12 cm, PA= 8 cm then find the legth of AB.
Two circles of radii 15 cm and 10 cm touch each other externally at a point A. PQ is the direct common tangent of those two circles of centers O ₁ and...
The circumference of the circle is 198 cm while the length of the rectangle is 12 cm more than the radius of the circle. Find the perimeter of the recta...
- 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...
- A square has an area of 2,500 cm². Find the area of a circle whose radius is (2/5)ᵗʰ of the length of the square’s side. (Take π = 3.14)
In the given diagram, point 'O' represents the center of a circle, while AB and DE are two distinct chords within the circle. The line segment OC is per...