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  1. A right pyramid stands on a base 16 cm square and its height is 15 cm. The area (in cm2) of its slant surface is
    1. 514
    2. 544
    3. 344
    4. 444
Correct Option: B


Lateral surface area =
1
× perimeter of base × slant height
2

[∵ Slant height = √8² + 15² = √64 + 25 = √289 = 17 cm]
∴ Required area =
1
× 64 × 17 = 544 sq.cm.
2



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