Heron’s Formula
Brahmagupta’s Formula
Pick’s Formula
100

Heron’s formula to find the area of a triangle

What is A= SQRT(S (s-a) (s-b) (s-c) )

100

Brahmagupta’s formula to find the semi perimeter of a quadrilateral 

What is S=SQRT( (s-a) (s-b) (s-c) (s-d) )

100

I and b stand for

What is interior and boundary lattice points

200

The year this formula was created

60 CE

200

S equal in the equation 

What is a+b+c+d/2

200

The area equation is

What is I+B/2-1

300

S/semi perimeter equals 

What is a+b+c/2

300

You end your final answer with this 

What is u^2

300

The year this formula was invented 

What is 1899

400

The formula was created in the city of 

What is Alexandria

400

The year this formula was invented 

What is ad 628

400

It was invented by this person

What is Georg Alexander Pick

500

The inventor was 

Who is Heron/Hero of Alexandria

500

The location it was invented

What is Bhinmal, India

500

The formula wasn’t popularized until this year

What is 1969