Abcd is a parrallelogram in which anglea=110 Find the measures of the angles b,c and d
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Answered by
0
Let the parallelogram be ABCD
Angle A+C=180
similarly Angle B+D=180
therefore, A+C=180
110+C=180
C=180-110
C=70
now, Angle A+D=180 (consecutive angles are congruent)
D=180-110
D=70
now,A+B+C+D=360
110+70+70+B=360
C=360-250
C=110
the parallelogram will be like
A_________________D
\ \
\ \
\ \
B \________________\ C
Angle A+C=180
similarly Angle B+D=180
therefore, A+C=180
110+C=180
C=180-110
C=70
now, Angle A+D=180 (consecutive angles are congruent)
D=180-110
D=70
now,A+B+C+D=360
110+70+70+B=360
C=360-250
C=110
the parallelogram will be like
A_________________D
\ \
\ \
\ \
B \________________\ C
Answered by
3
Let ABCD be the ||gm in which ∠A = 110° .
To find :- ∠A ,∠B and ∠D.
We know that sum of any two adjacent angles of ||gm is 180°.
•°• ∠A + ∠B = 180°
=> 110° + ∠B = 180°
=> ∠B = 180° - 110°
=> ∠B = 70°
Since opposite angles of ||gm are equal.
•°• ∠A = ∠C = 110°
And ∠B = ∠D = 70°
Hence, ∠B = 70° , ∠C = 110° and ∠D = 70° .
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