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

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 \( 65^{\circ} \).

ai The sides of a big triangle measure 100 m each. The sides of a small triangic measure 10 m less than the sides of the big triangle. fipd the perimeter of the big triangle. (ii) Find the perimeter of the smail trian is the ditference between the two perimeters?

1. Найдите координаты вектора \( \overrightarrow{K P} \), если известны координаты точек \( \mathrm{K}(-3 ; 7), \mathrm{P}(2 ; 4) \)

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?

S. Lee y responde. 164. Un terreno con forma rectangular tiene 96 me- tros de largo y 56 metros de ancho. Si se quiere dividir el terreno en superficies cuadradas que tengan la mayor área posible, ecuáles son las dimensiones de cada superficie cuadrada?