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Jika . Hitunglah: a.  dan  jika keduanya saling ...

Jika begin mathsize 14px style sudut space straight A equals 2 over 5 space sudut space straight B end style.

Hitunglah:

a. begin mathsize 14px style straight m angle straight A end style dan Error converting from MathML to accessible text. jika keduanya saling berpelurus!

Jawaban:

Jumlah besar sudut yang saling berpelurus adalah begin mathsize 14px style 180 degree end style. Maka diperoleh:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight m angle straight A plus straight m angle straight B end cell equals cell 180 degree end cell row cell 2 over 5 straight m angle straight B plus straight m angle straight B end cell equals cell 180 degree end cell row cell 7 over 5 straight m angle straight B end cell equals cell 180 degree end cell row cell straight m angle straight B end cell equals cell 180 degree cross times 5 over 7 end cell row blank equals cell 128 comma 57 degree end cell end table end style 

Sehingga:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight m angle straight A end cell equals cell 180 degree minus straight m angle straight B end cell row blank equals cell 180 degree minus 128 comma 57 degree end cell row blank equals cell 51 comma 43 degree end cell end table end style 

Jadi, besar sudut A dan B berturut-turut adalah table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 51 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px comma end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 43 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px degree end table dan table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 128 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px comma end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px 57 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank size 14px degree end table.

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