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Q.

A square sheet of paper has a side of 10 cm. A triangular piece is removed from one of its corners as shown. Find the area of the remaining part of the paper sheet.​


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a

89

b

99

c

96

d

76 

answer is C.

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Detailed Solution

Concept: Utilizing the square's characteristics, calculate the triangular piece's dimensions. To obtain the needed result, subtract the triangular piece's area from the square's overall area.
examining the triangle-shaped section of the paper to determine its height Question Image and the base Question Image of the triangle .
The original square sheet's size Question Image (the square's area Question Image )
Size of the triangle Question ImageConsequently, the area of the sheet's remaining portion Question Image.
Hence, the correct answer is option 3) 96cm².
 
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