Math at School

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This is a story of Emma and her day at school

Math at School
Ever since Emma started Math 3, she's been noticing a bunch of math problems in her everyday life. Although it has helped her with her math class, she does not necessarily enjoy solving these problems all the time.
X
60*
Like right now, Carlos had been talking with a classmate when he knocked his eraser off his desk. Emma knows that the desk is about two feet high. She also noticed that the eraser fell at approximately a 60 degree angle. She wants to know how far away the eraser is from the desk.
2ft
If we are trying to solve for the opposite, and we know the adjacent, we would want to use TOA. To do this we would use the equation: tan60* = (X/2)
SOH CAH TOA
hyp
opp
60*
adj
To solve this equation, we would first need to isolate X by multiplying each side of our equation by two. When we do this we get rid of the 2 in the denominator and are just left with X. Then, we multiply tan60* by two. What we are left with is our final answer.
2 (tan60*) = (X/2) 22 (tan60*) = X2(tan60*) ≃ 3.5X ≃ 3.5 ft.
Hey Carlos, is that your eraser over there?
Your right. I didn't realize it was on the floor!
The End

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