Which of the following triangles are right triangles? Select all that apply.

Triangle A:

101

20

Triangle A

Triangle B

Triangle C

89

15

Triangle B:

113

110

20

Triangle C:

29

21

B

Triangle A:

101

20

Triangle A

Triangle B

Triangle C

89

15

Triangle B:

113

110

20

Triangle C:

29

21

B

Step-by-step explanation: