For a quadrilateral to be a say, the diagonals must be

congruent and perpendicular

Step-by-step explanation:

Congruent and perpendicular

Step-by-step explanation:

the diagonals of a square are perpendicular because they bisect each other to form an angle 90 degrees

the sides and angles are congruent because the sides are the same length and the angles have the same size and measure

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

chicken chicken chicken

step-by-step explanation: