Answer:
School Sucks!
Step-by-step explanation:
Half of this stuff you will never use in real life!
Answer:
74
Step-by-step explanation:
Create rectangles by moving triangular pieces around:
Triangle A fits at location A', so you get a rectangle of 9*6 = 54 ft²
Triangle B fits at location B', so you get a rectangle of 5*4 = 20 ft²
totals to 20+54=74 ft²
Yes it is true for example like a parrelogram that has 2 obtuse angels so which means it is true