In analytical geometry, the distance formula is used to find the distance between lines, points, or between a line and a point. If you want to know what specific polygon the coordinates of the points makes, then you are going to use the distance formula for points. The equation is
d = √[(x₂-x₁)²+(y₂-y₁)²]
where x₁ & y₁ and x₂ & y₂ are coordinates of points 1 and 2
Now, you have to draw the coordinates on the Cartesian plane first. Then, identify two adjacent points and find the distance using the given formula. Do this for all pair of adjacent points. If you get two sets of equal lengths, then that polygon is a rectangle. Because by definition, a rectangle is a quadrilateral having two pairs of parallel and equal side lengths.
Answer:
35
Step-by-step explanation:
Alright this is like a linear pair. All three angles add up to 180; so this is the set up:
40 + 2x + 30 + 40 = 180
2x + 110 = 180
2x = 70
x=35
Answer:
$19,260
Step-by-step explanation:
6,000 * 7% = 420
6,000 + 420 = 6,420
6,420 * 3 = 19,260
easy
Answer:
Step-by-step explanation:
Everything is right except the second one. It is acute as all the angles are under 90 degrees.
Answer:A
Step-by-step explanation:
For SSS you need all sides