What is the formula to calculate the area of a circle? [#1257]

The formula to calculate the area of a circle is A = πr², where A is the area and r is the radius of the circle.

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The formula to calculate the area of a circle is A = πr², where A is the area and r is the radius of the circle.

International Literacy Day (ILD) is celebrated on September 8th every year by the United Nations Educational, Scientific and Cultural Organization (UNESCO) and most of its member countries. The day was proclaimed in 1966 to remind the international community of the importance of literacy for individuals, policy makers, and practitioners. It also serves as an opportunity for governments and international organizations to promote literacy.

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International Literacy Day (ILD) is celebrated on September 8th every year by the United Nations Educational, Scientific and Cultural Organization (UNESCO) and most of its member countries. The day was proclaimed in 1966 to remind the international community of the importance of literacy for individuals, policy makers, and practitioners. It also serves as an opportunity for governments and international organizations to promote literacy.

The ISI mark is a certification mark for industrial and consumer products in India that indicates that a product meets the standards set by the Bureau of Indian Standards (BIS). The BIS is the national standards body of India and the ISI mark has been used since 1955.

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The ISI mark is a certification mark for industrial and consumer products in India that indicates that a product meets the standards set by the Bureau of Indian Standards (BIS). The BIS is the national standards body of India and the ISI mark has been used since 1955.

American agronomist Norman Borlaug is widely known as the "Father of the Green Revolution". He led initiatives that increased agricultural production worldwide. In 1970, he received the Nobel Peace Prize in recognition of his contributions to increasing food supply and world peace. His work is estimated to have saved over a billion people from starvation.

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American agronomist Norman Borlaug is widely known as the "Father of the Green Revolution". He led initiatives that increased agricultural production worldwide. In 1970, he received the Nobel Peace Prize in recognition of his contributions to increasing food supply and world peace. His work is estimated to have saved over a billion people from starvation.

Surya Kiran Exercise is a bilateral joint military exercise between the armies of India and Nepal and is conducted annually.

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Surya Kiran Exercise is a bilateral joint military exercise between the armies of India and Nepal and is conducted annually.

Rashtriya Ekta Diwas, or National Unity Day, is observed on 31st October every year in India. It was introduced by the Government of India in 2014. The day is celebrated to mark the birth anniversary of Vallabhbhai Patel who had a major role in the political integration of India.

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Rashtriya Ekta Diwas, or National Unity Day, is observed on 31st October every year in India. It was introduced by the Government of India in 2014. The day is celebrated to mark the birth anniversary of Vallabhbhai Patel who had a major role in the political integration of India.

Womesh Chandra Bonnerjee was the first Indian to become the President of the Indian National Congress in 1885.

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Womesh Chandra Bonnerjee was the first Indian to become the President of the Indian National Congress in 1885.

World Population Day is an annual event, observed on July 11 every year, which seeks to raise awareness of global population issues. The event was established by the Governing Council of the United Nations Development Programme in 1989.

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World Population Day is an annual event, observed on July 11 every year, which seeks to raise awareness of global population issues. The event was established by the Governing Council of the United Nations Development Programme in 1989.

4 : 5

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4 : 5

An obtuse angle is an angle greater than 90 degrees but less than 180 degrees, like the angle formed by two walls that meet at a corner.

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An obtuse angle is an angle greater than 90 degrees but less than 180 degrees, like the angle formed by two walls that meet at a corner.

The Diamond League is an annual series of outdoor track and field meetings organized by World Athletics, established in 2010. It features 32 Diamond Discipline events, with each meeting hosting several of these events like sprints, jumps, throws, and distance running.

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The Diamond League is an annual series of outdoor track and field meetings organized by World Athletics, established in 2010. It features 32 Diamond Discipline events, with each meeting hosting several of these events like sprints, jumps, throws, and distance running.