Tolong jawab cepat dan pake cara.
Jawaban:
•] mencari AB
AB² = AC² - BC²
AB² = 13² - 5²
AB² = 169 - 25
AB² = 144
AB = √144 = 12cm
•] keliling bangun ABCD
K = 2p + 2l
K = 2(12) + 2(5)
K = 24 + 10
K = 34cm
- Panjang AB
[tex] \tt = \sqrt{ {13}^{2} - {5}^{2} } [/tex]
[tex] \tt = \sqrt{169 - 25} [/tex]
[tex] \tt = \sqrt{144} [/tex]
= 12 cm
- Keliling
= 2(p + l)
= 2(12 + 5) cm
= 2(17) cm
= 34 cm
『Answer by Vi⊹࿐』
