Question

which of the 132², 87² and 209² would end with digit 1

Answer 1

Answer:

209² is the right because

Step-by-step explanation:

209×209=43681

Answer 2

Answer:

209² is the correct answer

For knowing that we've to know

square ends table

that is

1²=1

2²=4

3²=9

4²=16=6

5²=25=5

6²=36=6

7²=49=9

8²=64=4

9²=81

only 1² & 9² have their squares ending with 1

here in the question,no one is there other than 9

therefore 209² is the correct answer

hope it helps