Whats the radian measure of the angle that subtends an arc length 2 radians on a unit circle?

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "

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Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2