Which of these side lengths makes the triangle acute?

A wire of length \( 7 x \) is bent into the shape of a circle. A. Express the circumference of the circle as a function of \( x \). B. Express the area of the circle as a function of \( x \). A. \( C(x)=\square \)

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

5) Dato un punto \( A(2 ;-2) \) e la rette \( y=2 x-3 \), determinare la distarad the punto e rette. Cou grefico

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

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?