Answer:
87°
Step-by-step explanation:
it can be seen directly
if you want angle AOD
it's 78°
Answer:
C
Step-by-step explanation:
look up rules of multiplying radicals.
You can multiply the radicands (the number inside the square root) then take the square root of the new number.
3*21 = 63
Factor 63 into 3*3*7
Pull out 3^2 from inside the square root
leaves you with 3sqrt7 or answer C
Can you tell me what do you mean exactly by menu of 8, so i can help you.
