Katie is selling lemonade for $1.50 per cup. She decides to put them on sale for $ 0.90. What percent discount did she give on h
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check the picture below.
if ∡F = 90° and ∡D = 30°, then the ∡A = 60°, meaning the triangle is a 30-60-90 triangle and therefore we can use the 30-60-90 rule as you see in the picture.
