badgaljustice badgaljustice
  • 16-07-2020
  • Mathematics
contestada

ABCD is a kite.
B
O
y = [?]
A 40°
C
Х
Enter the number
that belongs in
the green box.
D

ABCD is a kite B O y A 40 C Х Enter the number that belongs in the green box D class=

Respuesta :

WarNumen318
WarNumen318 WarNumen318
  • 16-07-2020

Answer:

wouldn't it be 40 if the opposite side is 40 ?

Answer Link
Hrishii
Hrishii Hrishii
  • 16-07-2020

Answer:

50°

Step-by-step explanation:

ABCD is a kite.

Therefore, AB = BC

[tex]\therefore m\angle BCA= m\angle BAC = 40\degree \\

\because BD \perp AC.. (Diagonals \: of\: kite) \\

\therefore y + 90\degree + m\angle BCA = 180\degree \\

\therefore y + 90\degree + 40\degree = 180\degree \\

\therefore y = 180\degree - 130\degree \\

\huge\red {\boxed {y = 50\degree}} [/tex]

Answer Link

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