HalahB759665
HalahB759665
30-10-2022
Mathematics
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what is the measure of a?
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JanaiaF461280
JanaiaF461280
30-10-2022
The sum of angles of a triangle is 180 degrees.
[tex]\begin{gathered} \angle A+\angle B+\angle C=180 \\ \angle A+43+15=180 \\ \angle A+58=180 \\ \angle A=180-58 \\ \angle A=122\text{ degr}ees \end{gathered}[/tex]
Thus, the vakue of a is 122 degrees.
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