mauve
Jajar genjangnya kongruen, sama sebangun maka AB = CD AD = BC kelilingn ABCD = AB + CD + AD + BC 40 = 7 + 7 + x + x 40 = 14 + 2x 40 - 14 = 2 x 26 = 2x x = 13
a. SR = AAB = 7 cm QR = BC = 13 cm b. ADC = ABC = 80⁰ DCB = DAB = (360 - 160) : 2 = 100⁰ maka <RQP = <ABC = 80⁰ <SRQ = < DCB = 100⁰
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riskapriy17
maaf tapi sudut kan ga sampe ribuan? dan juga ga smpe 800an
AB = CD
AD = BC
kelilingn ABCD = AB + CD + AD + BC
40 = 7 + 7 + x + x
40 = 14 + 2x
40 - 14 = 2 x
26 = 2x
x = 13
a. SR = AAB = 7 cm
QR = BC = 13 cm
b.
ADC = ABC = 80⁰
DCB = DAB = (360 - 160) : 2 = 100⁰
maka
<RQP = <ABC = 80⁰
<SRQ = < DCB = 100⁰