Angle ABC measures radians, and the coordinates of Care about (0.5, 0.87). 1. The measure of angle ABD is Explain how you know. 2. The measure of angle ABE is Explain how you know. B radians. What are the approximate coordinates of D? radians. What are the approximate coordinates of E?

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A: Here angle CBD is right angle. i.e. 900.

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A: we know that  The sum of interior angles of a triangle is 180°

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