besar sudut ABD adalah.....

Sudut berpelurus:

ABD + CBD = 180
(7x-36) + 2x = 180
9x - 36 = 180
9x = 216
x = 24

Maka, ABD = 7x - 36 = (7 . 24) - 36 =  132

7x-36+2x=180°
7x+2x=180°+36
9x=216
x=24°

<ABD=7x-36
=7(24)-36
=168-36
=132°

maaf klo salah :)