Mathematics
11 Online
OpenStudy (rainbow_rocks03):
What is the measure of ∠ABC?
A.
76°
B.
86°
C.
44°
D.
104°
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OpenStudy (rainbow_rocks03):
|dw:1429558714430:dw|
OpenStudy (rainbow_rocks03):
I think the answer is 104.D.
OpenStudy (rainbow_rocks03):
@rishavraj am I correct?
Mehek (mehek14):
no ur wrong
OpenStudy (anonymous):
no.
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OpenStudy (rainbow_rocks03):
oh
Mehek (mehek14):
all the angles add up to 180
56 + 48 = 104
180 - 104 = answer
OpenStudy (anonymous):
add 46 and 58 and then subract by 180
Mehek (mehek14):
46 + 58 my bad
OpenStudy (rainbow_rocks03):
so I was correct right?
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OpenStudy (anonymous):
no
OpenStudy (anonymous):
r u in k12?
OpenStudy (rainbow_rocks03):
oopss hang on
rishavraj (rishavraj):
sum of all angles of a triangle = 180
so 58 + 46 + angle ABC = 180
angle ABC = 180 - 104
Mehek (mehek14):
no u weren't
you added 48 + 56 = 104
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Mehek (mehek14):
56 + 48*
OpenStudy (rainbow_rocks03):
yah I added 48+56 to get 104
OpenStudy (anonymous):
once u get 104 subtract it by 180
Mehek (mehek14):
thats the sum of 2 angles
you want to find the third angle
Mehek (mehek14):
the third angle has to be
104 + x = 180
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OpenStudy (rainbow_rocks03):
104-180=-76
OpenStudy (rainbow_rocks03):
that's wrong
rishavraj (rishavraj):
why u getting negative ??? o_O
Mehek (mehek14):
180 - 104
OpenStudy (anonymous):
180-104
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OpenStudy (anonymous):
a
OpenStudy (anonymous):
ru in k12 @rainbow_rocks03
OpenStudy (rainbow_rocks03):
I got negative because @thebro55 said to subtract 104-180
OpenStudy (rainbow_rocks03):
I said yes
OpenStudy (anonymous):
i said 104 then subtract it from 180
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OpenStudy (anonymous):
and what grade? i am in 8th. i had this math class a while back