Geometry - GS questions based on daily current affairs

1)   Whose contribution is very significant in practical geometry?

a. Aryabhatta
b. Apastamba
c. Varahamihira
d. Brahmagupta
Answer  Explanation 

ANSWER: Apastamba

Explanation:
In second century B.C. Apastamba produced a practical geometry for producing altars. It describes acute angle, obtuse angle and right angle.