Pls help

Area of DEABC = 30100 m²

Step-by-step explanation:

Area of the given composite figure will be the sum of areas of 5 different figures.

Area of figure (1) = Area of right triangle ΔEGD

                           =

                           =

                           =

                           = 10800 m²

Area of figure (2) = Area right triangle AGE

                            =

                            =

                            = 60 × 80

                            = 4800 m²

Area of figure (3) = area of triangle AHB

                            =

                            =

                            = 1250 m²

Area of figure (4) = Area of trapezoid BCFH

                             =

                             =

                             =

                             =

                             = 8250 m²

Area of figure (5) = Area of right ΔDFC

                             =

                             =

                             = 5000 m²

Therefore, area of composite figure = Area of (1) + Area of (2) + Area of (3) + Area of (4) + Area of (5)

= 10800 + 4800 + 1250 + 8250 + 5000

= 30100 m²

d

step-by-step explanation:

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.