bantuin dong kak,buar cepet main:)
Nomor 7
360 = Jumlah sudut bangun segi empat
360 = <A + <B + <C + <D
360 = 25 + 100 + <C + 100
360 = 225 + <C
<C = 360 - 225
<C = 135°
Nomor 8
180° = Jumlah sudut bangun segitiga
180° = <A + <B + <C
180° = <A + 75 + 55
180° = <A + 130
<A = 180 - 130
<A = 50°
[tex]\huge\pink{\boxed{\tt Jawaban}}[/tex][tex] \huge{\blue{by}} \\{\pink{ben2009}}[/tex]
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