Question
The perimeter of a sector of a circle, whose radius is
17 cm, is 63 cm. If the length of a rectangle is 10 cm more than the arc subtended by the sector and its perimeter is 98 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) = 63 Or, l = 63 – 2r = 63 – (2 × 17) = 29 cm Therefore, length of the rectangle = 29 + 10 = 39 cm Let the breadth of the rectangle be ‘b’ cm Therefore, 2 × (39 + b) = 98 Or, b = 49 – 39 = 10 cm Therefore, area of the rectangle = length × breadth = 10 × 39 = 390 cm2
The shrill wine and (A)/unbearable thunder of (B)/falling bombs dug in under (C)/my skin and stayed there (D).
He told me that (1)/ he will be going to (2)/ the office tomorrow (3)/ to finish the project. (4)
Directions: In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appro...
Antibiotics are useless (A)/and proprietary antiseptic gargles and lozenges (B)/if used in access are (C)/likely to further aggravate the throat (D).
Both Google and Facebook, as the largest platforms for content distribution, are said to be creating systems that will filter fake news .
...The problems that our (a)/ country has and is bound to face (b)/ are the outcome of the selfishness of our so called saviours. (c)/ No error (d)
A well-developed corporate bond market provides additional avenues to corporate for raising funds in a cost affective manner and reduces reliance...
This question consists of a sentence that is divided into four parts numbered (1) to (4). Only one part of the sentence is not acceptable in standard w...
Read the sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The le...
When another tornados hit (A)/an Amazon warehouse in (B)/the southern Illinois city of Edwardsville (C)/around 100 workers were trapped inside (D).
