Question
What happens to the boiling point of water at higher
altitudes?Solution
At higher altitudes, atmospheric pressure is lower, reducing the boiling point of water because less heat is required to make the water molecules escape as vapor.
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.
Find the area of largest square that can be inscribed in a circle of radius ‘r’.
- A circle has its area eleven times greater than its circumference in numeric value. Find the circle’s diameter.
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...
Two chords AB and CD of a circle intersect at E such that AE = 3.4 cm, BE = 4.2 cm and CE = 2.6 cm. What is the approximate length of DE?
- The area of a circle is nine times its circumference (numerically). What is the diameter of the circle?
A sector of a circle has a central angle of 120° and a radius of 10 cm. Find the area of the sector.
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 ...
Two chords of a circle 'PQ' and 'RS' crosses each other at an exterior point 'O'. Determine the length of the chord 'RS' if the chord PQ is 36 cm long, ...
- The numerical value of the area of a circular park is ten times the numerical value of its perimeter. Find the diameter of the park.
Relevant for Exams:
