Question

I need help writing done the work​

Answer 1

>> Answer

_________

`\:`

Answer in the picture.

Answer 2

Explanation:

1). 6, 9, 10

6²+9² =

36+81 = 117

10² = 100

6²+9² > 10²

the acute triangle

2). 2, 12, 13

2²+12² =

4+144 = 148

13² = 169

2²+12² < 13²

the obtuse triangle

3). 9, 12, 19

9²+12²=

81+ 144 = 225

19² = 361

9²+12² < 19²

the obtuse triangle

4). 21, 28, 35

21²+28² =

441 + 784 = 1,225

35² = 1,225

21²+28² = 35²

the right triangle