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OlgaM077 [116]
3 years ago
15

Jules owns a square plot of land that measures 30 yards on each side. He plans to divide the land in half by building a fence, a

s shown by the dotted line below. How many yards of fencing will Jules need?
a) 15 yd
b) 30 yd
c) 30 square root 2 yd
d) 30 square root 3 yd

Mathematics
2 answers:
polet [3.4K]3 years ago
8 0

we know that

The length of the fence is equal to the length of the diagonal of the square

so

Applying the Pythagoras theorem

BD^{2} =DC^{2}+BC^{2}

we have

DC=BC=30\ yd

substitute

BD^{2} =30^{2}+30^{2}

BD^{2} =1,800

BD=\sqrt{1,800}=30\sqrt{2} \ yd

therefore

<u>the answer is the option C</u>

30\sqrt{2} \ yd

STALIN [3.7K]3 years ago
4 0

Answer:

Option c is correct

30\sqrt{2} yards of fencing will Jules need

Step-by-step explanation:

Diagonal of square(D) is given by:

D = \sqrt{2}a

where a is the length of side of square

As per the statement:

Jules owns a square plot of land that measures 30 yards on each side.

⇒length of each side of square(a) = 30 yards.

As he plans to divide the land in half by building a fence, as shown by the dotted line in the diagram.

Substitute the given values we have;

D = \sqrt{2} \cdot 30

⇒D = 30\sqrt{2} yards.

Therefore, 30\sqrt{2} yards of fencing will Jules need

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