Question
The perimeter of a rectangular field is 42 metres and
its area is 108 m2 . What is the length of the diagonal of this field?Solution
Let the length and breadth of the rectangular field be ‘p’ metres and ‘q’ metres respectively Then, according to the question, 2 × (p + q) = 42 Or, (p + q) = 42/2 = 21…… (1) Also p × q = 108 We know, (p + q)2 = p2 + q2 + 2pq Or, p2 + q2 = 212 – 2 × 108 Or, p2 + q2 =441-216=225 So, length of the diagonal of the rectangular field = √(length2 + breadth2) = √(p2 + q2) = √225 = 15metres
In the question below, a sentence is given with a part missing. From the options below, choose the correct combination of idioms that can fit in the bl...
Usual practices associated with a particular society, place, or set of circumstances.
An idiom/phrase is given in bold. Following this idiom/phrase are given three sentences, which use the given idiom/phrase. The idiom/phrase may or may ...
Select the most appropriate meaning of the given idiom.
One track mind
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On the issue of marriage, Sarita put her foot down .
Choose the correct meaning of the idiom/phrase given below :
be down with
Select the idiom/phrase that most accurately and contextually replaces the bolded segment.
At the conference, the speaker handled the controver...
Select the most appropriate meaning of the bold idiom.
The police are looking into the matter.
His sudden resignation was a bolt from the blue for everyone in the office.
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