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Help me with this asap pls!!
Date Posted: 6 years ago
Views: 916
Notice that the perimeter of A is made up of 7 sides of a square and two partial sides of a square.
But, notice that the rightmost square
is joined to two other identical squares.
The length of the two partial sides is simply
= length of two sides of a square - length of a side of the rightmost square
= Length of a side of a square
So the total perimeter is actually just
(7 + 1) sides = 8 sides
8 sides = 60 cm
1 side = 60 cm ÷ 8 = 7.5 cm
So for B, its perimeter is longer by
4 sides of a square.
So perimeter of B
= 7.5 cm x 4 + 60 cm
= 30 cm + 60 cm
= 90 cm
But, notice that the rightmost square
is joined to two other identical squares.
The length of the two partial sides is simply
= length of two sides of a square - length of a side of the rightmost square
= Length of a side of a square
So the total perimeter is actually just
(7 + 1) sides = 8 sides
8 sides = 60 cm
1 side = 60 cm ÷ 8 = 7.5 cm
So for B, its perimeter is longer by
4 sides of a square.
So perimeter of B
= 7.5 cm x 4 + 60 cm
= 30 cm + 60 cm
= 90 cm
See 1 Answer
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Date Posted:
6 years ago
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