12539463
07.10.2019 •
Mathematics
Photo above! how do i find the area of this? it says the answer is 1027ft but whenever i do it i don't get that
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Ответ:
area of rectangle = l * w
area of triangle= 1/2 ( b * h )
rectangle- 26 * 31 = 806
triangle- 1/2 ( 26 * 17 ) [ <-- 48 - 31 ] = 221
221 + 806 = 1027 ft squared
Ответ:
cut into rectangle and triangle
2 recognize teh trapezoid
cut into rectangle and triangle
area of rectnagle=height times base
are oftrianngle=height times base times 1/2
rectangle=26 times 31=806
triangle
we have to know the base legnth
since the top is 31
and bottom is 48
the extra bit is 48-31=17
base=17
height=26
area=1/2 times 26 times 17=221
add
rectangle+traingle=806+221=1027 square units
other way
area of trapezoid=1/2(b1+b2) times height
b1=31
b2=48
height=26
A=1/2(31+48) times 26
A=1027 squaer units
Ответ:
radius=2, height=3
Step-by-step explanation:
diameter= 2x the radius therefore 4/2=2=radius
cylinder volume formula=πr^2h
volume=12π
height= v/πr^2=12π/π*2^2=12π/π*2^2=12π/4π=3
hope this helped!