state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 Quantitative Aptitude Geometry Circles, Chords and Tangents
A and B are centres of two circles of radii 32 cm and 8 cm, respectively. CD is a direct common tangent to the circles. If the length of AB = 30 cm, then the length of CD will be:
1
20 cm
2
18 cm
3
10 cm
4
9 cm