Answer:
This is not a right angled triangle.
Step-by-step explanation:
12^2+17^2=433
Square root of 433 is not 20 and hence this is not a right angled triangle.
answer:
the answer will be 4
step-by-step explanation:
40 and 50,20 and 70
complementary angles are angles that added equal to an angle of 90 degrees and it says they are not congruent so the two angles are diferent
I hope I helped you^_^
