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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Yes it is a square..Frst you let all the points as ABCD then measure the distance between the AB Then BC Then CD if all the distance are coming same then it is a square..

no it is not necessary for a square all sides are equal, diagonals are equal all sides are perpendicular to each other and diagonals are perpendicular .

Let point A= (-1,2), B = (1,0), C = (3,2), D = (1,4) distance between AB = √{(1+1)² + (0-2)²} = 2√2 and so for BC = CD = DA = 2√2 distance between AC = √{(3+1)² + (2-2)²} = 4 and so for BD = 4 slope of AB = (2-0)/(-1-1) = -1 = m1 slope of BC = (2-0)/(3-1) = 1 = m2 slope of CD = (4-2)/(1-3) = -1 = m3 slope of DA = (2-4)/(-1-1) = 1 = m4 m1*m2 = m2*m3= m3*m4 = m4*m1 = -1 hence all side are perpendicular ,and all sides have equal length and both diagonal are equal hence point form a square.