Question

What is the approximate area of the figure?

A.
86.9 square centimeters

B.
137.1 square centimeters

C.
162.2 square centimeters

D.
212.5 square centimeters

Answer 1

http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17525/Lesson68695/VHS_PA_S2_03_L212_L312_LQ_Q3.gif

Answer 2

@BVBLegacy

Answer 3

this shape is a combination of a rectangle and a semi circle
what you have to do is to calculate the area of the rectangle and the semi circle separately then add them up

do you know how to calculate the area of the rectangle and the semi circle ?

Answer 4

thats the hard part

Answer 5

let's start with the rectangle
area of rectangle = length x width

here length=14 and width=8

so area of the rectangle = ?

Answer 6

18*10 +(pi5^2)/2 =180 +3,14 *25 = aproximathiv 260

Answer 7

is it right ?

Answer 8

it seems that you are applying the correct formulas, but you are not using the dimensions given in the figure correctly

why did you use 18*10 ?

Answer 9

area of a rectangle = base times height
= 8 times 14
area of semicircle = (1/2)(r^2)pi
r = (1/2)diameter
diameter = 8 so r = 4
so area of semicircle = (1/2)(4^2)pi

total area = (area of rectangle) + (area of semicircle)
= (8*14) + (1/2)(4^2)pi

Answer 10

wait is it 137.1 square centimeters

Answer 11

great work!
and correct answer

Answer 12

lol thanx

Answer 13

any time :)