Answer:
8.9
Step-by-step explanation:
64<80<81
√64<√80<√81
8<√80<9
Now evaluate (8.8)² = 77 and 11/25
hence the next decimal place must be greater than eight. Hence 8.9 is an estimate to the nearest tenth.
what shaded area?!?!!?!??!?!?!?!
Answer: -62
Hope this helps!!
40 45 because the minimum internal angle is 60