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Can i pls have help on b

thank you

Can i pls have help on b thank you-example-1
User NirKa
by
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1 Answer

2 votes

Answer:

x = 2.5

Explanation:

AB = 4x-2

AD = 3AB

= 3(4x-2) (multiply the brackets by 3)

= 12x-6

Since this is a kite, sides (AB and BC) are equal and sides (AD and DC) are also equal. So,

BC = 4x-2

DC = 12x-6

To find the perimeter we add all lengths together:

AB + AD + BC + DC

= 4x-2+4x-2+12x-6+12x-6

=32x-16

And since the perimeter is equal to 64 (from the question) we make the above expression equal to 64 to find x:

32x-16 = 64 (add 16 to both sides)

32x = 80 (divide by 32 on both sides)

x = 5/2 = 2.5

User Holger Sindbaek
by
8.7k points

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