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taloneyes3535
13.11.2019 •
Mathematics
Triangle q r s is shown with exterior angles. line r q extends through point d. line q r extends through point e. line q s extends through point c.
which angle has a measure equal to the sum of m∠sqr and m∠qrs?
∠rsc
∠sre
∠dqs
∠qsr
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Ответ:
Option A.
Step-by-step explanation:
In triangle QRS, Line R Q extends through point D. Line Q R extends through point E. Line Q S extends through point C as shown below.
We need to find an angle that has a measure equal to the sum of m∠SQR and m∠QRS.
According to the exterior angle theorem, the measure of an exterior angle of a triangle is equal to the sum of measures of two opposite interior angles.
Since ∠SQR and ∠QRS are two interior angles of a triangle QRS, so ∠RSC is the exterior angle of opposite to ∠SQR and ∠QRS.
By using exterior angle theorem we conclude that
m∠RSC = m∠SQR + m∠QRS
∠RSC has a measure equal to the sum of m∠SQR and m∠QRS.
Therefore, the correct option is A.
Ответ:
Oh My Gosh!
My best choice is A.