Question

the length of a rectangular paper sheet is 10 by 1.2 cm and breadth is 5 by 2.3 CM respectively find the area of a triangle​

Answer 1

Step-by-step explanation:

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Answer 2

First let us take 3 circles of equal radius touching each other inside a rectangle.

The length of rectangle is 4r and height is 2r+d . Where d is the length of the angle bisector of equilateral traingle. d=(√3)r

For the given question we need 9 circles each of radius 1cm (diameter 2cm) and rectangular sheets length is 10cm. Therfore in first row we can fit 5 circles with diameter 2cm. And in second row we can fit 4 circles of diameter 2cm. Therfore width of rectangular sheet is 2+3–√×1≈3.732cm