Question
The perimeter of a rectangular field is 60 metres and
its area is 137.5 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) = 60 Or, (p + q) = 60/2 = 30…… (1) Also p × q = 137.5 We know, (p + q)2 = p2 + q2 + 2pq Or, p2 + q2 = 302 – 2 × 137.5 Or, p2 + q2 = 625 So, length of the diagonal of the rectangular field = √(length2 + breadth2) = √(p2 + q2) = √625 = 25 metres
What is the capital of Lakshadweep?
Which of the following is the currency of Armenia?
Which of the following is the currency of Cuba?
Architect Marina becomes first South Asian to win Lisbon Triennale Lifetime Achievement Award. She Belongs to ?
Which of the following is the currency of Japan.
What is the currency of Yemen?
What is the capital of Australia?
 Seoul is the capital of which country?
_________ is the capital of Somalia.
The currency of Japan is: