MirianaW206177 MirianaW206177

30-10-2022
Mathematics

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Given that BCD and BCA form a straight angle, if BAC measures 20degrees and ABC measures 45 degrees, then the measure of BCD isdegrees.

Given that BCD and BCA form a straight angle if BAC measures 20degrees and ABC measures 45 degrees then the measure of BCD isdegrees class=

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RupertN261741 RupertN261741

30-10-2022

We will use the theorem ;

Exterior angle of a triangle = Sum of two interior opposite angles

BCD = 20 + 45

BCD = 65 degrees

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