Question

Please let me know if ​

Answer 1

Answer:

1 a isosceles

2 d 47,52,91

3 a 7,6,12and b 5,4,8.5 are angles possible to construct

4 180 is straight angle but the answer is equilateral

5 a acute angle 180/9=20

6 a 5

7 c a+b>c

8 a 1

9 a 6,8,10

10 d 62

11 a 180