Answer:
r = 22.5
Step-by-step explanation:
R = D/2 = 45/ 2 = 22.5
Answer:

Step-by-step explanation:
Applying Pythagoras theorem on right angle triangle


Diameter=2 x radius

Its 26.5 !! as (25×2+3)/2
Answer:
1.97
Step-by-step explanation:
4.82 - 2.85 = 1.97
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