A rectangular sheet measures 40 cm in length and 25 cm in width. A right-angled triangle with base 12 cm and height 8 cm is cut off from one corner of the rectangle. Find the area of the remaining sheet.
Show answer & explanation
Correct answer: A
Explanation
Length of the rectangle = 40 cm
Width of the rectangle = 25 cm
Base of the triangle = 12 cm
Height of the triangle = 8 cm
Area of the triangle = 1/2 × Base × Height
Area of the rectangle = 40 × 25 = 1000
Area of the triangle = 1/2 × 12 × 8 = 48
Remaining area = 1000 − 48 = 952 cm²