Assuming that the long side is parallel to the ground, the length of the shade is clearly still 2m.
As for the width, think about it. If the shade were laid flat, the width would be 1.5m. If the shade were standing up straight, the shadow would be just a line.
So, what trig function f(x) do you know which has
f(0) = 1
f(pi/2) = 0?
Two math students erect a sun shade on the beach. The shade is 1.5 m tall, 2 m wide, and makes an angle of 60° with the ground. What is the area of shade that the students have to sit in at 12 noon (that is, what is the projection of the shade onto the ground)? (Assume the sun’s rays are shining directly down).
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