Question

Tell me the answers pls ​

Answer 1

Answer:

Aryabhata or Aryabhata I was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy. His works include the Āryabhaṭīya and the Arya-siddhanta. For his explicit mention of the relativity of motion, he also qualifies as a major early physicist

Answer 2

Step-by-step explanation:

perimeter=2(l+b)

=2(28+21)

=2(49)

=98cm