Question

._____________________​

Answer 1

Answer:

 a = 1 ; b = 1

Step-by-step explanation:

we know that diagnols in a parallelogram bisects each other

implies midpoint of 1 diagnal = midpoint of the other diagnal

in this question

midpoint of AC = midpoint of BD because ABCD is a parallelogram

[  (4-2)/2 , (1+b)/2  ]   =   (a+1)/2 , (0+2)/2

⇒  (4-2)/2 = (a+1)/2   ;    (1+b)/2 = (0+2)/2

⇒   a = 1                     ;   b = 1

and that is the answer

hope this helps

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Answer 2

Answer:

a = 1 b=1

Step-by-step explanation: