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Unformatted text preview:4. Simplify these radicals. Write answers in simple radical form and a decimal approximation. a) b) 5. Isosceles ABC has two equal sides of 10 cm and base angles of 50 . Find the perimeter of ˚ ∆ the triangle. 6. a) Graph the line y = x. b) Label the angle the line makes with the x-axis 1. c) What is tan 1? d) What is the measure of 1? e) What is the measure of the angle the line y = 5x - 3 makes with the x-axis? 7. Find the area and perimeter of the shaded region at right. 8. Find the equation of the line perpendicular to that goes through (6, -2).