The coordinates below are the three vertices of a rectangle. identify the fourth coordinate and the area of the rectangle. a coordinate plane with the following points a at negative 2, 2; b at negative 2, negative 3; and c at 7, negative 3. (4 points) (2, 7), 28 units squared (2, 7), 45 units squared (7, 2), 28 units squared (7, 2), 45 units squared

The fourth coordinate ⇒ (7 , 2)

Area of the rectangle ⇒ 45 units²

Step-by-step explanation:

∵ A (-2 , 2) , B (-2 , -3) , C (7 , -3)

∵ ABCD is a rectangle

∵ AC bisects BD

∴ xD = xA + xC - xB

∴ xD = -2 + 7 - (-2) = -2 + 7 + 2 = 7

∴ yD = yA + yC - yB

∴ yD = 2 + (-3) - (-3) = 2 - 3 + 2 = 2

∴ Point D is (7 , 2)

∵ AB is a vertical segment (same x-coordinates)

∴ AB = 2 - (-3) = 2 + 3 = 5 units

∵ BC is a horizontal segment (same y-coordinates)

∴ BC = 7 - (-2) = 7 + 2 = 9 units

∵ Area rectangle = base × height

∴ Area = 9 × 5 = 45 units²

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.