Quadrilaterals, diagonal of a quadrilateral, types of quadrilaterals, rectangle, square, parallelogram, rhombus, trapezium, regular trapezium, kite, angle sum of a quadrilateral and applying properties of quadrilaterals to solve problems.
Sperm whales make some of the longest dives achieved by mammals, with some lasting up to 90 minutes, while dolphins and other whales can stay underwater for 20 minutes. The longest time a human has held their breath for under water is 19 minutes â set by a Swiss freediver called Peter Colat.
Health related question in topics Conditions Illness Biology .We found some answers as below for this question How long can an average person hold their breath,you can compare them. The current record for holding breath underwater is 8 minutes, 58 seconds. The average person can hold it a lot less. [ Source: http://www.chacha.com/question/how-long-can-an-average-person-hold-their-breath ] More Answers to How long can an average person hold their breath.