Answer:
a c e
Step-by-step explanation:
Consider, in ΔRPQ,
RP = R (Radius of larger circle)
PQ = r (radius of smaller circle)
We have to find, RQ, by Pythagoras theorem,
RP² = PQ²+RQ²
R² = r²+RQ²
RQ² = R²-r²
RQ = √(R²-r²
Now, as RQ & QS both are tangents of the smaller circle, their lengths must be equal. so, RS = 2 × RQ
RS = 2√(R²-r²)
Answer:
8125, im pretty sure this is right
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
10% of 30 = 3
50% of 30 = 15
10%+50%=60%
3+15=18
