please hlp Question 1
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angle A = angle C (opposite angles of parallelogram are equal )
also angle B=angleD
angleA = angle C =3angle B
A+B+C+D=360
3B+B+3B+B=360
8B=360
B=45
A=C=135
D=45
AB =CD (opposite sides of parallelogram are equal )
5x-7=3x+1
5x-3x=1+7
2x=8
x=4
CD=3×4+1=12+1=13
also angle B=angleD
angleA = angle C =3angle B
A+B+C+D=360
3B+B+3B+B=360
8B=360
B=45
A=C=135
D=45
AB =CD (opposite sides of parallelogram are equal )
5x-7=3x+1
5x-3x=1+7
2x=8
x=4
CD=3×4+1=12+1=13
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