Question

please only correct information ​

Answer 1

Answer:

I think if parallelogram have opposite sides are equal then AD=BC

(1) = X+10=18

=X= 18-10

= X= 8.

(2)

given

in // gm ABCD

angle A= 45

to find angle C

BC//AD

AB is transversal (sorry I can't write the sine of angle)

A+B=180 ( co interior angle are supply mantry).

angle B= 180-45

B= 135

opposite angle s are equal so

B=D( opposite angle are equal of parallelogram)

D=135

(3)

no it's false

(4)

as we know we solve it in 2 nd pard so B= 135

(5) the quadrilateral is square

thanks

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Answer 2

Answer:

answer is in the above attachment