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Warm Ups. Preview. 9-1 Perimeter and Area of Parallelograms 9-2 Perimeter and Area of Triangles and Trapezoids 9-3 Circles 9-4 Circumference and Area 9-5 Area of Composite Figures 9-6 Area of Irregular Figures. 9-1 Perimeter and Area of Parallelograms. Warm Up

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  1. Warm Ups Preview 9-1 Perimeter and Area of Parallelograms 9-2 Perimeter and Area of Triangles and Trapezoids 9-3 Circles 9-4 Circumference and Area 9-5 Area of Composite Figures 9-6 Area of Irregular Figures

  2. 9-1 Perimeter and Area of Parallelograms • Warm Up • Graph the line segment for each set of ordered pairs. Then find the length of the line segment. • 1. (–7, 0), (0, 0) • 2. (0, 3), (0, 6) • 3. (–4, –2), (1, –2) • 4. (–5, 4), (–5, –2) 7 units 3 units 5 units 6 units

  3. 9-2 Perimeter and Area of Triangles and Trapezoids Warm Up A rectangle has sides lengths of 12 ft and 20 ft. 1. Find the perimeter. 64 ft 2. Find the area. 240 ft2

  4. 9-3 Circles Warm Up 1.Two angles are supplementary. One angle measures 61°. Find the measure of the other angle. 2. Two angles are complementary. One angle measures 19°. Find the measure of the other angle. 3. Two angles are supplementary and congruent. Find the measure of each angle. 119° 71° 90°

  5. 9-4 Circumference and Area • Warm Up • 1. Find the length of the hypotenuse of a right triangle that has legs 3 in. and 4 in. long. • 2. The hypotenuse of a right triangle measures 17 in., and one leg measures 8 in. How long is the other leg? • 3. To the nearest centimeter, what is the height of an equilateral triangle with sides 9 cm long? 5 in. 15 in. 8 cm

  6. 9-5 Area of Composite Figures Warm Up Find each area. Round to the nearest tenth, if necessary. 1.a rectangle with length 10 cm and width 4 cm 2. a parallelogram with base 18 ft and height 12 ft 3. a triangle with base 16 cm and height 8 cm 4. a circle with radius 5 in. 40 cm2 216 ft2 64 cm2 78.5 in2

  7. 9-6 Area of Irregular Figures Warm Up Find the area of each figure. Round to the nearest tenth, if necessary. 1.a trapezoid with bases 10 cm and 12 cm and height 5 m 2. a parallelogram with base 9 in. and height 8 in. 3. a semicircle with radius 5 m 4. a semicircle with diameter 8 cm 55 cm2 72 in2 39.3 m2 25.1 cm2

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