Abcde is a pantagon with be || cd and bc || de bc l cd if the perimeter of abcde is 21 cm find xand y
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ᏴᎬ || ᏟᎠ and ᏴᏟ ||ᎠᎬ
Since , BCDE is a parallelogram.
ᏴᏟ =ᎠᎬ and ᏴᎬ =ᏟᎠ
ᎠᎬ = x-y -------(1)
and x+y =5 -----(2)
Perimeter of ᎪᏴᏟᎠᎬ =21 ᏟᎷ
ᎪᏴ + ᏴᏟ+ ᏟᎠ+ᎠᎬ+ᎬᎪ =21ᏟᎷ
=3 +x- y+x+y+x-y+3=21( DE = x- y )
3x -y = 15 -----(3)
x + y + 3x - y = 5+15
4x = 20
X= 5
Now , put in 2
5 + y = 5
= Y = 0
X = 5 ᎪNᎠ Y = 0
ᏴᎬ || ᏟᎠ and ᏴᏟ ||ᎠᎬ
Since , BCDE is a parallelogram.
ᏴᏟ =ᎠᎬ and ᏴᎬ =ᏟᎠ
ᎠᎬ = x-y -------(1)
and x+y =5 -----(2)
Perimeter of ᎪᏴᏟᎠᎬ =21 ᏟᎷ
ᎪᏴ + ᏴᏟ+ ᏟᎠ+ᎠᎬ+ᎬᎪ =21ᏟᎷ
=3 +x- y+x+y+x-y+3=21( DE = x- y )
3x -y = 15 -----(3)
x + y + 3x - y = 5+15
4x = 20
X= 5
Now , put in 2
5 + y = 5
= Y = 0
X = 5 ᎪNᎠ Y = 0
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