A reinforced concrete beam requires a cross-sectional area of reinforcing steel equal to 25 cm². If 2 cm diameter steel rods are used, how many will be required?

A reinforced concrete beam requires a cross-sectional area of reinforcing steel equal to 25 cm². If 2 cm diameter steel rods are used, how many will be required?

A reinforced concrete beam requires a cross-sectional area of reinforcing steel equal to 25 cm². If 2 cm diameter steel rods are used, how many will be required?



A. 6 rods

B. 7 rods

C. 8 rods

D. 10 rods

E. 12 rods


Answer: C


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