Question

Please ans the above question​

Answer 1

Answer:

Number of rectangles

$= \binom{5}{2} \times \binom{5}{2} = 10 \times 10 = 100$

Number of squares

1*1 - 8 , 2*2 - 3 , 3*3 - 2 = 13

( 3*3 are 1.5 + 1.5 and 1+1+1)

So answer

100 - 13 = 87