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Starter Questions Thursday

S3. 52 o. Starter Questions Thursday. Q1. Find all missing angles. Q2. List the prime numbers between 10 and 20. www.mathsrevision.com. Q3. Solve. 4cm. Q4. Calculate the area of the shape. 5cm. 10cm. S3. The Area of a circle. Aim of Today’s Lesson

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Starter Questions Thursday

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  1. S3 52o Starter Questions Thursday Q1. Find all missing angles Q2. List the prime numbers between 10 and 20. www.mathsrevision.com Q3. Solve 4cm Q4. Calculate the area of the shape. 5cm Created by Mr Lafferty 10cm

  2. S3 The Area of a circle Aim of Today’s Lesson To come up with and be able to use the formula for calculating the area of a circle www.mathsrevision.com Created by Mr Lafferty

  3. If we break the circle into equal sectors And lay them out side by side We get very close to a rectangle. 1 8 2 2 7 1 3 6 5 8 6 4 4 3 7 5 The Area of a circle S3 www.mathsrevision.com Created by Mr Lafferty

  4. If we cut the sectors Thinner and thinner then we get closer and closer to a rectangle. Hence we can represent the area of a circle by a rectangle. 8 6 4 2 3 7 1 5 thinner and thinner sectors The Area of a circle S3 www.mathsrevision.com Created by Mr Lafferty

  5. The Area of a circle S3 www.mathsrevision.com But the area inside this rectangle is also the area of the circle Created by Mr Lafferty

  6. Solution S3 Q.Find the area of the circle ? The Area of a circle 4cm www.mathsrevision.com Created by Mr Lafferty

  7. The Area of a circle S3 Now it’s your turn ! Begin Maths in Action Book Ex9.1 page 194 Q1-2 www.mathsrevision.com Created by Mr Lafferty

  8. Solution S3 • The diameter of the circle is 60cm. • Find area of the circle? The Area of a circle www.mathsrevision.com Created by Mr Lafferty

  9. The Area of a circle S3 Now it’s your turn ! Begin Maths in Action Book Ex9.1 page 194 Q3-4 www.mathsrevision.com Created by Mr Lafferty

  10. Solution S3 • The area of a circle is 12.64 cm2. • Find its radius? The Area of a circle www.mathsrevision.com Created by Mr Lafferty

  11. The Area of a circle S3 Now it’s your turn ! Begin Maths in Action Book Ex9.1 page 194 Q5 onwards www.mathsrevision.com Created by Mr Lafferty

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