Marcus loves baseball and wants to create a home plate for his house. marcus needs to calculate the area of the home plate at the ball field so he can reconstruct it when he gets home. calculate the area of the polygon.

a) 30 in2
b) 31.5 in2
c) 36.5 in2
d) 39 in2

area of the rectangle

3 × 6 = 18 inches^2

area of the top triangle

(5 × 6)/2 = (30)/2 = 15 inches^2

area of left triangle

(4 × 3)/2 = (12)/2 = 6 inches^2

Total Area

18 + 15 + 6 = 33 + 6 = 39 inches^2

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this