Corey and Veronica each multiplied 1/2 x 5/2. Cory got 6/4 and Veronica got 5/4. Which student found the correct answer? Explain.

The graphs are not typed

given that    bisects ∠dbc, which statement must be true? the answer is:   m∠abd = m∠abc 

Use pythagorean’s theorem and find the missing side lengths of the two smaller triangles and add them together
13^2 - 12^2 = 5
15^2 - 12^2 = 9
5+9 = 14
14 is the length of each side of the square
14^2 + 14^2 = 19.8
19.8 is the diagonal length of the inside if the square