Medium Math Class 9 Level 5

In Heron's formula if sides are 9 cm 40 cm and 41 cm then what is the semiperimeter?

हीरोन सूत्र में भुजाएं 9 cm 40 cm और 41 cm हों तो अर्धपरिमाप कितना होगा?

A 40 cm / 40 cm B 45 cm / 45 cm C 50 cm / 50 cm D 90 cm / 90 cm
Show answer and explanation
Correct Answer

B. 45 cm / 45 cm

Explanation

s = (9 + 40 + 41)/2 = 90/2 = 45 cm.

s = (9 + 40 + 41)/2 = 90/2 = 45 cm।

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