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3 years ago

The area of a yard is 192 yd2 what is the perimeter

Mathematics

2 answers:

oee [108]3 years ago

6 0

Answer:

the perimeter is 32sqrt(3) yd, or approximately 55.4 yd

Step-by-step explanation:

A square has 4 congruent sides, so if the length of 1 side is s, the perimeter is 4s. Also, the area of a square is the side squared, or A = s^2.

A = s^2

s^2 = 192 yd^2

Take the square root of both sides.

s = sqrt(192)

s = sqrt(64 * 3)

s = 8sqrt(3)

P = 4s

P = 4 * 8sqrt(3) = 32sqrt(3)

Answer: the perimeter is 32sqrt(3) yd, or approximately 55.4 yd

Kruka [31]3 years ago

4 0

Answer:

if its a square this is your answer 36864 if its a rectangle this is your answer 384

Step-by-step explanation:

u really didnt give enough info and im not sure if that 2 is a typo but if ur finding the area of a square thats the asnswer

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3 years ago

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2 years ago

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2 years ago

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3 years ago

Suppose a Railroad rail is 3 kilometers and it expands on a hot day by 20 centimeters in length. Approximately how many meters w

yulyashka [42]

Answer:

Center of the rail rise above the ground in 17 m.

Solution:

The railroad rail is 3 km = 3000 meter

It expands 20 cm = 0.2 meter on hot day in length

So it will form a triangle with base 3000 m and the equal sides will be $\frac{3000+0.2}{2} meter = 1500.1 meter$

Let us assume that the center of the rail will raise x meter.

So using Pythagoras theorem,

$x^{2}+1500^{2}=1500.1^{2}$

$x^{2}=1500.1^{2}-1500^{2}$

$x^{2}=(1500.1+1500)(1500.1-1500)$

$x=3000.1\times0.1$

$x^{2}=300.01$

Taking square roots on both sides we get,

$x=17(\text {approx})$

So, the rail raise 17 meter from the ground .

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3 years ago