Mathematics, 28.07.2019 12:30 shaydog6353

Asquare has a diagonal with length 12.2. what is the area of the square to the nearest tenth?

Answers: 1

Show answers

Answers

Answer from: gen73

The diagonal of a square is related to the length of the side of the square by
$d=\sqrt 2 L$
where d is the diagonal, and L the length of the side. We are told the diagonal of this square, d=12.2, so we can find the length of the side by rearranging the previous equation:
$L= \frac{d}{ \sqrt{2} } = \frac{12.2}{ \sqrt{2} } =8.6$

and now we can calculate the area of the square, which is given by the square of the length of the side:
A=L^2=(8.6)^2=74.0

Answer from: sbanoali6120

Area of the square is 74.4 unit².

Step-by-step explanation:

A square has a diagonal with length 12.2 units.

We have to find the area of the square.

Since all angles of a square are of 90° so by Pythagoras theorem

Side² + side² = Diagonal²

Let the length of the diagonal is d and length of sides be l.

l² + l² = d²

2l² = d²

$l^{2}=\frac{d^{2} }{2}=\frac{(12.2)^{2} }{2}$

Since area of a square = side² = l²

Therefore area of square = $\frac{12.2^{2} }{2}=\frac{148.84}{2}=74.42unit^{2}$

Area of the square is 74.4 unit².

Answer from: Quest

Ithink the answer is discovery verbs because they are quite similar to the verb 'discovering'
What subcategory best fits the following words from list 2?

What subcategory best fits the following words from list 2?

Answer from: Quest

answer:

payment just for service

→

87.12

payment for service including tax

→

94.09

explanation:

service only with 20% tip

→

72.6

(

100

)

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the

service

−−−−−−

so technically the answer is

→

72.6

(

100

)

87.12

however, the intention of the question provider may have been that your answer is to be

87.12

(

100

)

94.09

to 2 decimal places.

payment just for service

→

87.12

payment for service including tax

→

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge

→

72.60

20% tip

100

72.60

14.52

−−−−−−

←

add

87.12

tax

100

87.12

6.97

−−−−−

←

add

94.09

Another question on Mathematics

Mathematics, 21.06.2019 16:30

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Answers: 3

Answer

Mathematics, 21.06.2019 17:30

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

Answers: 2

Answer

Mathematics, 21.06.2019 18:00

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0