A folded paper sheet!

Geometry Level 2

A paper sheet 20 c m 20 cm by 15 c m 15 cm is folded so that two opposite vertices coincide. Find the length of the f o l d / c r e a s e fold/crease

25 cm 75/4 cm 19/3 cm 15 cm

Mufri Gani by Mufri Gani , 16, Philippines

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1 solution

Mufri Gani
Jun 30, 2018

A shortcut a d b \frac{ad}{b} where a and b are the lengths of the sides and a < b, and d is diagonal of a and b.

15 ( 25 ) 20 \frac{15(25)}{20}

75 4 \frac{75}{4} c m cm

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