# Geometry

Find the area of the isosceles trapezoid with lower base 18cm, legs 6cm and base angles 30 degrees

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1. To have a triangle the sum of any two sides must be greater than the third side
6+6 is not greater than 18

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2. The coordinates of the vertices of a polygon are R(-4, 3), S(-4, -7), T(5, -7), and V(5, 3). Find the area and determine whether it is a parallelogram, rectangle, or square.

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