cameron9179
cameron9179
10-02-2021
Mathematics
contestada
pls help my brainly buddies
Respuesta :
mhanifa
mhanifa
10-02-2021
Answer:
≈ 41.2°
Step-by-step explanation:
Given ΔABD with:
AC⊥BD
BC = 6 cm
BD = 22 cm
Area(ABC) = 42 cm²
Find ∠D = x
Consider ΔABC
Area = 1/2BC*AC
42 = 1/2*6*AC
AC = 42/3 = 14
Consider ΔACD
CD = BD - BC = 22 - 6 = 16 cm
AC = 14 cm
tan x = AC/CD
tan x = 14/16 = 0.875
x = arctan 0.875
x ≈ 41.2°
Answer Link
Аноним
Аноним
10-02-2021
Answer:
≈ 41.2°
Step-by-step explanation:
Answer Link
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