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24-03-2021
Mathematics

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a) Work out the size of angle x. b) Give reason for your answer.

a Work out the size of angle x b Give reason for your answer class=

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24-03-2021

A

x=75°

B

We know that ∠EFG=∠ABF because they are corresponding angles.

We also know that ∠x+∠ABF=180, because angles along a straight line always equal 180:

x+105=180

x=75°

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