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3 years ago

Helpp meee please!!!! asap

Mathematics

1 answer:

Vladimir [108]3 years ago

3 0

A. x-6=6

if u plug in 12, you get 12-6=6 which is true
all the other ones would be false if you plugged in 12

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Work out 97.974436 divided 14 and give your answer to 2 decimal places.

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3 years ago

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In the figure, the perimeter of hexagon ABCDEF is approximately ___

blsea [12.9K]

Let
$F(-10,0) A(10,10) B(20,10) C(30,0) D(20,-10) E(10,-10)$
we know that
$FA=FE \\ AB=ED \\ BC=CD$

step 1
find distance FA
$dFA= \sqrt{ (y2-y1)^{2} +(x2-x1)^{2} } \\ dFA= \sqrt{ (10-0)^{2} +(10+10)^{2}$

$dFA= \sqrt{500} \\ dFA=22.36 units$

step 2
find distance AB
$dAB=20-10 \\ dAB=10 units$

step 3
find the distance BC
$dBC= \sqrt{ (y2-y1)^{2} +(x2-x1)^{2} }$
$dBC= \sqrt{ (0-10)^{2} +(30-20)^{2} }$
$dBC= \sqrt{200}$
$dBC=14.14 units$

step 4
find the perimeter
the perimeter is equal to
$P=2*[FA+AB+BC] \\ P=2*[22.36+10+14.14] \\ P=93 units$

step 5
find the area
the area is equal to
area triangle AFE+area rectangle ABDE+area triangle BDC

step 6
find the area of triangle AFE
$A1=20*20/2 \\ A1=200 units^{2}$

step 7
find the area of the rectangle ABDE
$A2=10*20 \\ A2=200 units^{2}$

step 8
find the area of the triangle BDC
$A3=20*10/2 \\ A3=150 units^{2}$
$Area Total=200+200+150 \\ Area Total=550 units^{2}$

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3 years ago

Read 2 more answers

Helpp meee please!!!! asap​

Helpp meee please!!!! asap