To classify the angle of a triangle (acute, obtuse, or right), you can use slope formula to see if the slopes are perpendicular. If so, it is a right triangle. The distance formula can be applied to figure out whether the triangle is isosceles, equilateral, or scalene. if the triangle is isosceles, then two of the sides will be the same length and one side will be of a different length. If the triangle is equilateral, then all sides will be of the same length. If the triangle is scalene, then all side will be of different lengths.
Answer:
$5.12
Step-by-step explanation:
Multiply the cost per pound price by how many pounds of oranges Ben bought
1.60 * 3.20 = 5.12
Complementary angles signify that the two angles will add up to 90 degrees If the sum of your complementary angles exceeds the difference by 72, the equation will look like

, where x and y are the two different angles. You can cancel the x's out because they are on both sides, and you are left with the single variable equation, [text]y=-y+72[/tex], and when you solve for y, you find that y is 36 degrees, which means that x is 54 degrees. Since you want the smaller angle, 36 degrees would be correct.