What is the formula to find the volume of a cone? Calculate it by using V = 1/3πr²h, where r is the radius and h is the height.
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Math question: Find the slope-intercept equation of a line passing through the points (-2, 3) and (4, -5).
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Q: In triangle ABC, if angle A is congruent to angle B and side AB is congruent to side AC, prove triangle ABC is isosceles using the rules for congruence of triangles.