please help me Guys please solve it
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shivam947ishereyrr:
very easy. need helo afyer answers. messege here
Answers
Answered by
7
12.Ans
a=80 degree (alt. opp. angles)
b=c=100 degree (corresponding angles)
_____________
13..Ans
angle DBA =70°(vetically opposite angles)
angle BDA=180°-120°(linear pair)
=60°
angle DBA+BDA+X=180° (angle sum property of a traingle)
70°+60°+X=180°
130°+X=180°
X=180°-130°
X=50°
Now,
angle BDE=180°-120°(Linear pair)
=60°
then,
angle Y =angle BDE(corresponding angles)
60°=60°
a=80 degree (alt. opp. angles)
b=c=100 degree (corresponding angles)
_____________
13..Ans
angle DBA =70°(vetically opposite angles)
angle BDA=180°-120°(linear pair)
=60°
angle DBA+BDA+X=180° (angle sum property of a traingle)
70°+60°+X=180°
130°+X=180°
X=180°-130°
X=50°
Now,
angle BDE=180°-120°(Linear pair)
=60°
then,
angle Y =angle BDE(corresponding angles)
60°=60°
Answered by
5
y=50° and x=155°
angle B= angle C =75°
angle C= angle BCF +angle FCD
75°=y+25°
y=50°
FE ¦¦ CD so CF is the tranversal
angle FCD + x=180
x = 180 -25
x=155°
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