Question

gold medal

Answer 1

Malik bought chargers that are shaped like regular octagons. If the chargers have the dimensions shown below, what is the area of one charger?

Answer 2

https://app128.studyisland.com/pics/159698q10.png

Answer 3

272 square inches
164 square inches
128 square inches
68 square inches

Answer 4

shown below? where? the posting must have been really below the screen :|

Answer 5

ahemm...=)

Answer 6

well... the Area of a Regular Polygon is \(\bf \cfrac{1}{2}\cdot apothem\cdot perimeter\)

Answer 7

is half 4?

Answer 8

but one of the 6in there, tells me it's not a regular octagon

Answer 9

of the total by adding all the numbers?

Answer 10

well, they want the Area, so you'd sum up all the Areas of the triangles and the rectangles in it, because the equations for a regular polygon, won't work because it not a regular polygon

Answer 11

do u add up all the numbers and then time by 4 which is half of 8?

Answer 12

well, I'd get the Area of the triangles and rectangles in it, and add them up

Answer 13

recall that the Area of a Triangle is \(\bf \cfrac{1}{2}\cdot base\cdot height\)

Answer 14

confusing me

Answer 15

all 4 triangles in the shape, seem to have 4 for height and 4 for base

Answer 16

and what

Answer 17

and you'd use that to get their Area, \(\bf \cfrac{1}{2}\cdot base\cdot height\)

Answer 18

then you'd get the Area of the rectangles in the shape, and the sum all Areas up

Answer 19

and what is the answer

Answer 20

well... what did you for the Areas?

Answer 21

4*4 is and haft of 16

Answer 22

4*4 is 16

Answer 23

hmm 4*4 = 16

Answer 24

hmm what

Answer 25

done

Answer 26

hmmm \(\bf \cfrac{1}{\cancel{2}}\cdot \cancel{4}\cdot 4\implies 2\cdot 4\implies 8\)

Answer 27

so you have 4 of those triangles, so 8 * 4 = 32

so all 4 triangles area add up to 32 inches