Question
The circumference of a circle is equal to the perimeter
of a rectangle whose length and breadth are in ratio 11:10, respectively. If the area of the rectangle is 24750 cm 2 , then find the radius of the circle.Solution
Let the length and breadth of the rectangle be 10x cm and 10x cm, respectively According to the question, 11x × 10x = 24750 => x2 = 24750/110 = 225 => x = 15 Therefore, perimeter of the rectangle = 2 × (11x + 10x) = 630cm Let the radius of the circle be ‘r’ cm. According to the question, 2πr = 630 Or r = 630× (7/44) = 100.22cm
In March, 2022 who was appointed as the chairman of National Financial Reporting Authority(NFRA)?
The first maiden joint exercise “SAHYOG HOP TAC 2018” of Coast Guards of India and other country was held in the Bay of Bengal, Chennai, Tamil Nadu?...
How many languages are currently approved in the Indian Constitution?
The system of the Budget was introduced in British India during the viceroyalty of ________.
Citigroup Inc has planned to sell their Indian consumer businesses to the private lender ____ for $1.6 billion.
The Indian women’s hockey team came from a goal down to beat Ireland 2-1and register its second win at the Cantor FitzgeraldU-21 International four-na...
What is the primary purpose of the NISAR satellite, a joint project between ISRO and NASA?
What is the percentage of GST charged on hotel rooms?
The process of making silk from silkworm is known as ______.
Which of the following is correct regarding Opportunity Cost?
