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Question Number 189421 by normans last updated on 16/Mar/23

Commented by mr W last updated on 16/Mar/23

$$terriblediagram:$$$$notclearifcircletangentsthesemi$$$$circle.$$$$notclearwhichangleismeant.$$

Answered by mr W last updated on 16/Mar/23

$$\frac{7}{7+8}\times 180°=84°$$$$90-84=6°$$$$\frac{6°}{2}=3°$$$$x=90°-3°=87°✓$$

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