Either look it up on a calculator or draw it out like this https://youtu.be/KiI4eZCGTLM
Answer:B
Step-by-step explanation:

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I drew out each point and arrive at the conclusion that the longest side is equal to 4 and the shorter side to 3
so that means the answer is 12
Answer:
"In each figure the total area is equal and the area of the 4 triangles is equal, so the remaining white area in each figure must also be equal."
Step-by-step explanation:
Both figures make up congruent squares, and they are made up of 4 congruent triangles, so the white area in between must be equal between the two figures