. Consider the isosceles right-triangle with the congruent side = 1. Each acute angle is 45°. Calculate the values below using this triangle. Do not use a calculator. Keep the values as radicals with rational denominators. 45° ✓ 1 45° 1 (a) Hypotenuse of the triangle = (b) sin(45°) = (c) cos(45°) = (d) tan(45°) = Memorizing these trigonometric values will help build a good mathematical foundation.

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