(2)
from
the adjacent figure AB is a straight
line. Find the value of xo
2x-199
37++
А A
o
B
Answers
Answered by
0
ANSWER :
Since
AB is a straight line, the sum of all the angles onAB at a point O is 180 o .∴(3x+7) o
+(2x−19)o+x=180 o
(Linear angles)⇒6x−12=180⇒6x=192⇒x=32 o
So, ∠AOC=(3x+7) o =(3×32+7) o =103o ,∠COD=(2x−19)o=(2×32−19)o=45o ,∠BOD=32o
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Answered by
1
Answer:
Since
AB
is a straight line, the sum of all the angles on
AB
at a point O is 180
o
.
∴(3x+7)
o
+(2x−19)
o
+x=180
o
(Linear angles)
⇒6x−12=180⇒6x=192⇒x=32
o
So, ∠AOC=(3x+7)
o
=(3×32+7)
o
=103
o
,
∠COD=(2x−19)
o
=(2×32−19)
o
=45
o
,∠BOD=32
o
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