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Targeting Grade C

GCSE Mathematics. Targeting Grade C. Shape and Space Unit 3 Circles. TOP Parts of a circle Practice 1: Circumference Practice 2: Area TAIL 1 Practice 3: Surface area Practice 4: Volume TAIL 2. If not you need. Can you… Name parts of a circle

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Targeting Grade C

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  1. GCSE Mathematics Targeting Grade C Shape and Space Unit 3 Circles

  2. TOPParts of a circle Practice 1: Circumference Practice 2: Area TAIL 1 Practice 3: Surface area Practice 4: Volume TAIL 2 If not you need • Can you… • Name parts of a circle • Calculate the circumference of a circle • Calculate the area of a circle • Try a test • Calculate Surface area of a cylinder • Calculate Volume of a cylinder • Try a test

  3. Area A = Лr 2 Are you ready for the answers ? circumference z Remember d = 2r r = d/2 TOP Name the parts of the circle radius y x Circumference C = Лd diameter Lesson

  4. 1. 2. The diameter of a 10 pence coin is 2.45 cm. Work out the circumference of the coin.Give your answer correct to 1dp Practice 1: Circumference Work out the circumference of the circle.Give your answer, in centimetres, correct to 1dp 3. The radius of a circle is 6.4 cm. Work out the circumference of this circle. Give your answer correct to 1 dp Lesson

  5. 1. 2. Calculate the area of a circle with diameter 12 cm. Practice 2: Area The radius of the circle is 9.7 cm.Work out the area of the circle.Give your answer to 3 significant figures. 4. 3. A circle has a radius of 6.1 cm.Work out the area of the circle. The radius of a circle is 3.60 m. Work out the area of the circle.Give your answer correct to 3 significant figures. Lesson

  6. m 2 2 cm 1. Jerry has a new garden roller.Part of the roller is a cylinder.The diameter of the cylinder is 0.7 m.Jerry pushes the roller along.The cylinder goes around exactly 16 times. The radius of a circle is 4 m. A= 50.3 C= 25.1 m Work out the area and the circumference of the circle.Give your answer correct to 3 significant figures. 2. A = 176.714 /2 = 88.4 The diagram shows a semi-circle.The diameter of the semi-circle is 15 cm. Calculate the area of the semi-circle.Give your answer correct to 3 significant figures. Are you ready for the answers ? TAIL 1 3. Picture NOT accurately drawn Work out how far the roller moves.Give your answer correct to 3 significant figures. 16 x 2.1994 = 35.2 m Lesson

  7. Surface area of a cylinder = circumference x height + area of the 2 circles = 2Лrh +(2 Лr ) 2 Volume = area of circle x height = Лr h 2 Remember Next

  8. cm 2 2 cm A= 905 A =1270 Are you ready for the answers ? 1. 2. Diagram NOT accurately drawn The diagram shows a solid cylinder.The radius of the cylinder is 9.3 cm.Its height is 12.4 cm. Calculate the total surface area of the cylinder.Give your answer correct to 3 significant figures. Practice 3: Surface area Diagram NOT accurately drawn The diagram shows a solid cylinder.The cylinder has a diameter of 12 cm and a height of 18 cm. Calculate the total surface area of the cylinder.Give your answer correct to 3 significant figures. Lesson

  9. 3 3 Volume =1206.371579=1206 Volume =502.6548246 =503 cm cm Are you ready for the answers ? 1. 2. Practice 4: Volume Diagram NOT accurately drawn The diagram shows a cylinder with a height of 10 cm and a radius of 4 cm. Calculate the volume of the cylinder.Give your answer correct to 3 significant figures. Diagram NOT accurately drawn A cylinder has a height of 24 cm and a radius of 4 cm.Work out the volume of the cylinder.Give your answer correct to 3 significant figures. Lesson

  10. cm 3 2 Surface Area = 19401.76836 = 19400 Volume =753.3982269 =754 cm Are you ready for the answers ? TAIL 2 1. 2. A can of drink is in the shape of a cylinder.The can has a radius of 4 cm and a height of 15 cm. Diagram NOT accurately drawn The diagram shows a solid cylinder.The radius of the cylinder is 54 cm.The height of the cylinder is 10 cm. Calculate the curved surface area of the cylinder Give your answer correct to three significant figures Calculate the volume of the cylinder.Give your answer correct to 3 significant figures. Lesson

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