Keliling ABC adalah.. - Universityku

a. 48 cm
b. 43 cm
c. 37 cm
d. 44 cm
tolong jawab secepatnya ya..

Keliling ABC adalah..

Keliling ABC adalah..

Penjelasan dengan langkah-langkah:

AC² = CD² + AD²

AC² = 5² + 12²

AC² = 25 + 144

AC² = 169

AC = 13 cm

BD² = AB² – AD²

BD² = 20² – 12²

BD² = 400 – 144

BD² = 256

BD = 16 cm

BC = BD – CD

BC = 16 – 5 = 11 cm

Keliling ABC = AB + BC + AC

= 20 + 11 + 13

= 44 cm

Penjelasan dengan langkah-langkah:

$bd = sqrt{ {20}^{2} - {12}^{2} } \ bd = sqrt{400 - 144 } \ bd = sqrt{256} \ bd = 16 : cm$

$ac = sqrt{ {12}^{2} + {5}^{2} } \ ac = sqrt{144 + 25} \ ac = sqrt{169} \ ac =13 : cm$

Keliling Segitiga ABC

AB = 20 Cm

BC = 16 Cm – 5 cm

. = 11 cm

CA = 13 Cm

Keliling = AB + BC + CA

. = 20 cm + 11 cm + 13 cm

. = 44 cm

maaf klo salah