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Perhatikan gambar berikut! b. Tentukan besar  d...

Perhatikan gambar berikut!

b. Tentukan besar angle ABD dan angle PQT!

Jawaban:

- Nilai straight p

2 straight p degree plus 36 degree equals 90 degree space rightwards arrow space Berpenyiku space space space space space space space space space space 2 straight p degree equals 90 degree minus 36 degree space space space space space space space space space space 2 straight p degree equals 54 degree space space space space space space space space space space space space straight p degree equals fraction numerator 54 degree over denominator 2 end fraction space space space space space space space space space space space space space space straight p equals 27 degree 

- Nilai straight q

3 straight q degree plus 90 degree plus 2 straight q degree equals 180 degree space rightwards arrow space Berpelurus space space space space space space space space space space 5 straight q degree plus 90 degree equals 180 degree space space space space space space space space space space space space space space space space space space space space 5 straight q degree equals 180 degree minus 90 degree space space space space space space space space space space space space space space space space space space space space 5 straight q degree equals 90 degree space space space space space space space space space space space space space space space space space space space space space space straight q degree equals fraction numerator 90 degree over denominator 5 end fraction space space space space space space space space space space space space space space space space space space space space space space straight q degree equals 18 degree 

Sehingga:

angle ABD equals 90 degree plus 2 straight p degree equals 90 degree plus 2 open parentheses 27 close parentheses degree equals 90 degree plus 54 degree equals 144 degree angle PQT equals 3 straight q degree equals 3 open parentheses 18 close parentheses degree equals 54 degree 

Jadi, besar angle ABD dan angle PQT adalah 144 degree dan 54 degree.

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