Perhatikan Gambar! Nilai a-b adalah?

By Admin ReiPosted on December 4, 2022

Perhatikan Gambar! Nilai a-b adalah?

Perhatikan Gambar! Nilai a-b adalah?

$sf angle~ABC$ berseberangan dalam dengan $sf angle~BCG$ , sehingga $sf angle~BCG$ $sf =angle~ABC$ $sf =40degree$

$sf angle~ACF+angle~ACB+angle~BCG=180degree$

$sf 80degree+4it{b}sf ~+40degree=180degree$

$sf 120degree+4it{b}sf ~=180degree$

$sf 4it{b}sf ~=180degree-120degree$

$sf 4it{b}sf ~=60degree$

$huge{bsf ~=15degree}$

Didapatkan $sf angle~ACB=60degree$

$sf angle~ACG=60degree+40degree=100degree$

$sf angle~DAC$ berseberangan dalam dengan $sf angle~ACG$ , sehingga $sf angle~DAC$ $sf =angle~ACG$ $sf =100degree$

$sf angle~DAC+angle~CAB=180degree$

$sf 100degree+2it{a}sf ~=180degree$

$sf 2it{a}sf ~=180degree-100degree$

$sf 2it{a}sf ~=80degree$

$huge{asf ~=40degree}$

Maka :

$red{huge{a-b}}$ $sf ~=40degree-15degree$ $red{huge{sf =25degree}}$