19. în figura 26 sunt reprezentate punctele \( A, B, C \) și \( D \), astfel încât dreptele AB și CD sunt paralele și \( 4 B C D=74^{\circ} \). Se consideră punctul E situat in același semiplan delimitat de dreapta \( B C \) cu punctul \( D \), astfel încât \( 4 E B C=106^{\circ} \). Demonstreazá cả punctele \( A, B \) și E sunt coliniare.

The diameter of a circle measures 20 ft. What is the circumference of the circle?Use 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.

is it at 1530 hours? Jack drives north at \( 80 \mathrm{~km} / \mathrm{h} \) for 2 hours. He then turns and drives east at the same speed for 3 hours. (a) To the nearest degree, what is Jack's true bearing from his original position? (b) If Jack could drive from his current position straight back to his starting position: (i) how far would he travel, to the nearest kilometre (ii) what true bearing should he follow?

The length of the longer leg of a right triangle is 20 cm more than twice the length of the shorter leg. The length of the hypotenuse is 22 cm more than twice the length of the shorter leg. Find the side lengths of the triangle. Length of the shorter leg: \( \square \mathrm{cm} \) Length of the longer leg: \( \square \mathrm{cm} \) Length of the hypotenuse: \( \square \mathrm{cm} \)

In this exercise, lines m and n are parallel. Find the measure of each numbered angle.

Homework 1. find the crea of a rectangler with langth 6 cm and breadth \( \frac{12}{2} \mathrm{~cm} \)