Nancy is making a kite based on the pattern below. About how much binding does Nancy need to cover the edges of the kite?

Logical equivalent of the give question is its contrapositive

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)