The length of a rectangle is twice its width. The Perimeter is 42 cm. Find the length of each side.
1 answer:
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In left one)
the 3 angles are equal so the sides are equal then we can say
then x is 30÷11
the right one) is exactly similar
the 3 angles are equal so the sides are equal then we can say
then x is 30÷11
the right one) is exactly similar
Answer:
n = 36
Step-by-step explanation:
The opposite sides of a parallelogram are congruent , that is
AB = DC , substitute values
n - 5 =
n + 7 ( multiply through by 3 to clear the fractions )
2n - 15 = n + 21 ( subtract n from both sides )
n - 15 = 21 ( add 15 to both sides )
n = 36