List one way in which you, or people around you, might use quadrant angles of trigonometric functions in your daily life.

Measuring fields, lots and areas;Making walls parallel and perpendicular;Installing ceramic tiles;Roof inclination;The height of the building, the width length etc. and the many other such things where it becomes necessary to use trigonometry.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it