จงหาสมการเส้นตรงที่ตั้งฉากกับเส้นสัมผัสกับวงกลม \( x^{2}+y^{2}-4 x-1=0 \) ที่จดสัมผัส \( (3,-2) \)

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?

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?

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 \( 65^{\circ} \).

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.

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