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Scale Factor Scale Factor Solve the clues to find the four-digit code to escape the classroom! In each diagram, shape B is an enlargement of shape A. Solve the clues to find the four-digit code to escape the classroom! In each diagram, shape B is an enlargement of shape A. a. Work out the scale factor of enlargement: B 4cm 9cm 9cm The code is the scale factor in question a, the x-value only in question b and the answer to question c. B Exit Code: visit twinkl.com A 4cm c. Shape A has a surface area of 400cm². Calculate the surface area of shape B to the nearest cm². 12cm 4cm 12cm c. Shape A has a surface area of 400cm². Calculate the surface area of shape B to the nearest cm². A B b. Work out the missing values x and y: 8c 12 m cm A x B y 4cm b. Work out the missing values x and y: 8c 12 m cm A x B y A 10cm 2.5cm A 10cm 2.5cm a. Work out the scale factor of enlargement: The code is the scale factor in question a, the x-value only in question b and the answer to question c. B Exit Code: visit twinkl.com Answers Answers Solve the clues to find the four-digit code to escape the classroom! In each diagram, shape B is an enlargement of shape A. Solve the clues to find the four-digit code to escape the classroom! In each diagram, shape B is an enlargement of shape A. a. Work out the scale factor of enlargement: B 4cm b. Work out the missing values x and y: 8c 12 m cm A x B y A Scale factor = 4 10cm 2.5cm Scale factor = 4 B b. Work out the missing values x and y: 8c 12 m cm A x B y x = 6, y = 6 4cm A 10cm 2.5cm a. Work out the scale factor of enlargement: 9cm 9cm c. Shape A has a surface area of 400cm². Calculate the surface area of shape B to the nearest cm². c. Shape A has a surface area of 400cm². Calculate the surface area of shape B to the nearest cm². The code is the scale factor in question a, the x-value only in question b and the answer to question c. 400 × (1/3)² = 44cm² Exit Code: 4 6 4 visit twinkl.com 4 4cm Scale factor = 1/3 12cm 4cm 12cm Scale factor = 1/3 B A x = 6, y = 6 B A The code is the scale factor in question a, the x-value only in question b and the answer to question c. 400 × (1/3)² = 44cm² Exit Code: 4 6 4 visit twinkl.com 4