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.
What is the average length of time a human, not engaged in physical activity, can hold their breath? How long can dolphins hold their breath? What kind of breathing training or techniques should I try to enable me to hold my breath underwater for at least 3 minutes in heavy surfing c...