A triangular lamina with base width b = 30 mm and height h = 50 mm is given. The location of its centroid measured with respect to its apex is at a distance of ______ mm.

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?