Question

express the following as the sum of two consecutive integers

1) 21 square

2 ) 13 square​

Answer 1

Answer:

1) first 21× 21=441

then 441 ÷ 2 = 220.5

so 220.5+220.5 = 21 square

so 220 + 221 = 21 square

2)13×13 = 169

then 169 ÷ 2 = 84.5

so 84.5+84.5 = 13 square

so 84 + 85 = 13 square