C HAPTER 9 Lesson 5. Q UOTABLE “Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion.

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Presentation transcript:

C HAPTER 9 Lesson 5

Q UOTABLE “Every great dream begins with a dreamer. Always remember, you have within you the strength, the patience, and the passion to reach for the stars to change the world.” Harriet Tubman

O BJECTIVE Find volumes of prisms and cylinders

F ORMULAS Volume of a prism= base area x height Also thought of as length x width x height Volume of a cylinder = Πr²h Also thought of as the area of a circle times the height.

E XAMPLE 1 A watering trough is in the form of a trapezoidal prism. Its ends have the dimensions shown. How long is the trough if it hold 12 m³? 2.4 m 1.6 m h 1.2 m

E XAMPLE 2 A cylindrical storage tank 1 m in diameter is 1.2 m high. Find its capacity in liters? Use Π ≈ 3.14.

T RY IT … Find the volume of the solid. Use Π ≈ 3.14 A)480 cm³ B)2400 cm³ C)4800 cm³ D)240 cm³

H OMEWORK Pg ; 1-12