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TEST PRACTICE 1. One of the sides of a parallelogram is 80% the length of the other one and the angle between 30. If the area of the parallelogram is 40 cm2, find the length of the height to the larger side. 2. A circle with radius 2 cm is inscribed in quadrilateral ABCD. If AD = 5 cm and BC = 4 cm, find the area of ABCD. 3. Find the area of a trapezoid with bases 8 cm and 2 cm, and legs 7 cm and 5 cm. 4. A circle with radius 6V3 cm is inscribed in a regular hexagon. Find the radius of the circle circumscribed around the hexagon. 5. The diagonals in trapezoid ABCD (AB| |CD) intercept at point O. If angle AOB is 60, AC - BD = 8 cm, and the area of ABCD is - - cm2, find the lengths of the diagonals. 6. The diagonals of the parallelogram ABCD intercept at point O. If AC = 16 cm, angle AOD is 60, and the radius of the circumscribed circle around triangle ABO is 13v3 3 cm, find the area of the parallelogram. 7. A circle is inscribed in a quadrilateral ABCD such that AB = AD = 3 cm, CD = 5 cm, and the measure of angle ADC is 120. Find: a. The length of diagonal AC; b. The length of BC; c. The area of ABCD; d. The radius of the circle