Question

Please help me out with this geometric question, the question is number 4

Answer 1

Way #1: Area= base(Length of the base) x Height (Altitude)
Way #2: Area= diagonal 1 diagonal 2 divided by 2
Way #3: Area= s(Length of any side) ^2 sin(The sin function) a(Interior angle)

Answer 2

I think it is 200 because if you cut it from the 2 points at the side you can solve the area for the 2 triangle and add the 2 areas