3 years ago

The length of the diagonal of a square is 30square root 2 find the perimeter of the square

Mathematics

1 answer:

RoseWind [281]3 years ago

5 0

Answer:

120.

Step-by-step explanation:

Using the Pythagoras theorem:

(30√2)^2 = x^2 + x^2 where x =length of each side of the square

1800 = 2x^2

x^2 = 900

x = 30.

So the perimeter = 4*30 = 120.

You might be interested in

What is the numerical coefficient of the linear term of the quadratic equation 3x2 − 9 =0?

babunello [35]

Answer:

Step-by-step explanation:

The numerical coefficient of the linear term of the quadratic equation is 0 because there is no linear term, and 0 times any number or term is 0, or nothing.

7 0

3 years ago

Liana saves $25 every month in her savings account. She took out $100 one

Mkey [24]

Answer:

Step-by-step explanation:

25m - 100 = 450

25m = 450 + 100

25m = 550

m = 550/25

m = 22 <==== 22 months

7 0

3 years ago

A contractor is adding 243 CY backfill. If each truck can hold 162 CF, how many truck loads are needed

nexus9112 [7]

The number of trucks needed is an illustration of rates

The number of trucks needed is 42

<h3>How to determine the number of trucks</h3>

The size of the backfill is given as: 243 CY

A truck can load up to 162 CF

So, the number of trucks needed is calculated as:

$n = \frac{243 CY}{162 CF}$

Convert CY to CF

$n = \frac{243 * 27CF}{162 CF}$

Solve

$n = 40.5$

Approximate

$n = 41$

Hence, 41 trucks are needed