Circumference is 62.8
To find the circumference, the formula is 2πr
The radius is half so we must multiply by 2 which is 20.
And finally, you multiply by π (3.14) and you will get 62.8 cm.
In conclusion, the answer is 62.8 cm.
I don’t know :3 that’s confusing sorry
Answer: 1. Acute 2. Complementary 3. Congruent 4. Obtuse 5.Right
6. Supplementary
Step-by-step explanation: