W/c 18th January - GCSE LESSON - Angles

w/c 18th Jan GCSE Angles Lesson

SESSION OBJECTIVES

• Identify the mathematical names for different types of angles

• Calculate the size of angles accurately

• Apply knowledge in an exam context

Multiple Choice

an obtuse angles is defined as what size?

• 90 degrees

• less than 90 degrees

• more than 90 degrees

• greater than 180 degrees

Multiple Choice

What is the size of angle y?

• 130 degrees

• 115 degrees

• 230 degrees

• 65 degrees

Multiple Choice

What is the relationship between angles 1 & 2?

• opposite angles

• corresponding angles

• alternate angles

Answers

• 1/. 145

• 2/. 145

• 3/. 55

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Can you calculate the size of x?

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Can you work out the angle x

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