Medium Math Class 9 Level 6

A triangle has area 210 cm² and height 21 cm. What is its base?

एक त्रिभुज का क्षेत्रफल 210 cm² और ऊंचाई 21 cm है तो आधार कितना होगा?

A 10 cm / 10 cm B 15 cm / 15 cm C 20 cm / 20 cm D 25 cm / 25 cm
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Correct Answer

C. 20 cm / 20 cm

Explanation

210 = 1/2 × base × 21 so base = 420/21 = 20 cm.

210 = 1/2 × आधार × 21 इसलिए आधार = 420/21 = 20 cm।

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