find the value of a b c d plzz find plzz
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a=20, b=40, c= 20 will be the answer
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a+ 50= 70 because of exterior angle property.
a=20
a+b+c=130
20+b+c=130
b+c=110 i
and b+70=d
or b-d= -70 ii
subtract i from ii
b-d= -70
b+d= 110
- - -
______
-2d= -180
2d=180
d=180/2
d= 90
70+b= 90
b=90-70
b=20
a=20
a+b+c=130
20+b+c=130
b+c=110 i
and b+70=d
or b-d= -70 ii
subtract i from ii
b-d= -70
b+d= 110
- - -
______
-2d= -180
2d=180
d=180/2
d= 90
70+b= 90
b=90-70
b=20
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