Medium Math Class 9 Level 2

In Heron's formula if sides are 9 cm 10 cm and 17 cm then what is the semiperimeter?

हीरोन सूत्र में भुजाएं 9 cm 10 cm और 17 cm हों तो अर्धपरिमाप कितना होगा?

A 16 cm / 16 cm B 18 cm / 18 cm C 20 cm / 20 cm D 36 cm / 36 cm
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Correct Answer

B. 18 cm / 18 cm

Explanation

s = (9 + 10 + 17)/2 = 36/2 = 18 cm.

s = (9 + 10 + 17)/2 = 36/2 = 18 cm।

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