Question
The perimeter of a sector of a circle, whose radius is
20 cm, is 60 cm. If the length of a rectangle is 10 cm more than the arc subtended by the sector and its perimeter is 66 cm, then find the area (in cm2) of the rectangle.Solution
Let the arc subtended by the sector be ‘l’ cm and the radius of the circle be ‘r’ cm According to the question, (l + 2r) = 60 Or, l = 60 – 2r = 60 – (2 × 20) = 20 cm Therefore, length of the rectangle = 20 + 10 = 30 cm Let the breadth of the rectangle be ‘b’ cm Therefore, 2 × (30 + b) = 66 Or, b = 33 – 30 = 3 cm Therefore, area of the rectangle = length × breadth = 3 × 30 = 90 cm2
Choose the option that is the passive form of the sentence.
The security guard opened the gate using his pass.
Select the option that expresses the given sentence in active voice.
I was fascinated by the movie.
Select the correct passive form of the given sentence.
Professor Sehgal will organise a webinar on investment tomorrow.
Select the option that expresses the given sentence in active voice.
The homework must be done by you. Â Â Â Â Â Â
Select the correct passive form of the given sentence.Â
Our advocate is arguing the case very effectively.
Select the correct active form of the given sentence.
This beautiful story was written by Maya.
The old people should be taken care of.
Select the correct active form of the given sentence.
Many Indians have been brought back from foreign countries by the government.
Mediocre
Select the correct Passive form of the given sentence.
He drew a house in the morning.
Relevant for Exams:
