If 1 meter = 3.28 feet, what is the height of the washington monument in meters?

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?

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