Question

2. Mark any four points A, B, C, D. Join them to make a quadrilateral.
of norallel lines formed which you observed in​

Answer 1

Answer:

This type of quadrilateral is known as square

Step-by-step explanation:

here , in the below attachment

• marked 4 points
• A= (0,0)
• B = (3,0)
• C = (3,3)
• D = (0,3)
• since , the distance of all the sides are equal ,
• This type of quadrilateral is known as square

Answer 2

Answer:

A=(−1,−2),B=(1,0),C=(−1,2),D=(−3,0)

By distance formula,

d(A,B)=

(1+1)

2

+(0+2)

2

=2

2

d(B,C)=

(−1−1)

2

+(2−0)

2

=2

2

Also, CD=2

2

,DA=2

2

∴AB=BC=CD=AD ....(1)

Slope of AB=

−2

−2

=1

Slope of BC=

−1−1

2

=−1

Hence, slope of AB × slope of BC =−1

∴AB is perpendicular to BC

The lengths of the adjacent sides are equal and they perpendicular to each other.

Therefore, the polygon is a square.