Medium Math Class 9 Level 8

A cuboid has length 18 cm breadth 12 cm and height 8 cm. What is its total surface area?

घनाभ की लंबाई 18 cm चौड़ाई 12 cm और ऊंचाई 8 cm है तो कुल पृष्ठीय क्षेत्रफल कितना होगा?

A 816 cm² / 816 cm² B 864 cm² / 864 cm² C 912 cm² / 912 cm² D 1728 cm² / 1728 cm²
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Correct Answer

A. 816 cm² / 816 cm²

Explanation

TSA = 2(lb + bh + hl) = 2(216 + 96 + 144) = 912 cm².

TSA = 2(lb + bh + hl) = 2(216 + 96 + 144) = 912 cm²।

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