danielahchf danielahchf

28-11-2018
Mathematics

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If the line AD is a tangent to circle B, what is the measure of BCA?

If the line AD is a tangent to circle B what is the measure of BCA class=

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28-11-2018

90°

Cuz,
Perpendicular dropped on the point when a tangent touches a circle from its centre make an angle of 90°

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