3 years ago

If ABCD is a square with one side equal to 10 cm what is the length of BD?

Mathematics

2 answers:

Andre45 [30]3 years ago

8 0

Answer/Step-by-step explanation:

Square = 4 equal sides

1 side = 10 cm

So,

A+B+D+C = 10+10+10+10

so it equals 40

But we arfe looking for half of it or adding of the sides,

B+D

10 + 10 = 20

<h2><u>Answer = 20 cm </u></h2>

You could have also done it by :

The whole thing is 40, and a square has 4 sides. We are looking at 2 sides which is half so ,

40/2 = 20 cm

<h2><u>Answer: 20 cm</u></h2>

goldfiish [28.3K]3 years ago

5 0

Answer:

Step-by-step explanation:

10+10+10+10=40

40/2=20

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however not in the choice

ah ha..

You meant : 12.2 sq. cm : 16 sq. cm = small / large

so 12.2 / 16 = S / 56 cm

S = 42.7 sq. cm

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