Question

answer the question no.10

Answer 1

let x be one angle.
then the adjecent angle = x

we know that opposite angle of parallelogram are equal.
so angle opposite to x is also equal to x
and the adjecent angle ie. x opposite angle is also x.

so we know that sum of all angles of a parallelogram = 360 degree

x+x+x+x=360 degree

4x = 360 

x = 360/4

x = 90 degree

so all angle is 90 degree



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