What is the area of a rectangle with side length of 5/12 foot and 2/ 3 foot

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class