PRACTICE (1) Determine the area of the circle, given each measurement. Use 3.14 for \( \pi \) and round to the nearest hundredth. \( \begin{array}{ll}\text { (a) Diameter: } 8 \text { in. } & \text { (b) Radius: } 10 \text { in. }\end{array} \)

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

Касательная и треугольник Прямая, проходящая через точку \( A \), касается окружности с центром \( O \) в точке \( B \). Найдите градусную меру меньшего угла треугольника \( А О В \), если один из его углов равен \( 65^{\circ} \).

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 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.

2) Dato un punto \( P(-2 ;-1) \) e una rette II \( y=2 x-3 \) deterninare retto per il punto \( P \) ! Fare grefico