1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gavmur [86]
3 years ago
11

Identify the perimeter and area of a square with diagonal length 11in. Give your answer in simplest radical form. HELP PLEASE!!

Mathematics
1 answer:
Nataliya [291]3 years ago
8 0

Answer:

  • Perimeter = 22*sqrt(2)
  • Area = 60.5 inches
  • D

Step-by-step explanation:

Remark

You need 2 facts.

  1. A square has 4 equal sides.
  2. It contains (by definition) 1 right angle but since we are not including and statement about parallel sides, it needs 4 right angles.

That means you can use the Pythagorean Theorem.

If one side of a square is a then the 1 after it is a as well.

Formula

  • a^2 + a^2 = c^2
  • 2a^2 = c^2

Givens

  • c = 11

Solution

  • 2a^2 = 11^2
  • 2a^2 = 121                    Divide by 2
  • a^2 = 121/2                  Take the square root of both sides
  • sqrt(a^2) = sqr(121/2)    
  • a = 11/sqrt(2)                Rationalize the denominator
  • a = 11 * sqrt(2)/[sqrt(2) * sqrt(2)]
  • a = 11 * sqrt(2) / 2

<em><u>Perimeter</u></em>

P = 4s

  • P = 4*11*sqrt(2)/2
  • P = 44*sqrt(2)/2
  • P = 22*sqrt(2)

You don't need the area. The answer is D

<em><u>Area</u></em>

  • Area = s^2
  • Area = (11*sqrt(2)/2 ) ^2
  • Area = 121 * 2 / 4
  • Area = 60.5


You might be interested in
Y=2x-2 and 4x+2y=12. solve the equation PLEASE SHOW WORK​
diamong [38]
<h3>The solution as an ordered pair is (x,y) = (2,2)</h3><h3>x = 2 and y = 2 pair up together.</h3>

===============================

Work Shown:

4x+2y = 12

4x+2( y ) = 12

4x+2( 2x-2 ) = 12 ... replace y with 2x-2

4x+2( 2x ) + 2( -2 ) = 12 ... distribution rule

4x+4x-4 = 12

8x-4 = 12

8x-4+4 = 12+4 ... add 4 to both sides

8x = 16

8x/8 = 16/8 ... divide both sides by 8

x = 2 is the first part of the answer

Use x = 2 to find y

y = 2x-2

y = 2(2)-2 ... replace x with 2

y = 4-2

y = 2 is the second part of the answer

8 0
3 years ago
Read 2 more answers
HELP!!!! Graduation depends on you guys today
Nonamiya [84]
There are the combinations that result in a total less than 7 and at least one die showing a 3:

[3, 3] [3,2] [2,1] [1,3] [2,3]
The probability of each of these is 1/6 * 1/6 = 1/36

There is a little ambiguity here about whether or not we should count [3,3] as the problem says "and one die shows a 3." Does this mean that only one die shows a 3 or at least one die shows a 3? Assuming the latter, the total probability is the sum of the individual probabilities:

1/36 + 1/36 + 1/36 + 1/36 + 1/36 = 5/36

Therefore, the required probability is: 5/36
3 0
3 years ago
Can someone please help quick!
Jet001 [13]

Answer:

the answer is 8

Step-by-step explanation:

1/2(8 + 4) = 6

0.5(8 + 4) = 6

(4 + 2) = 6

6 = 6

7 0
3 years ago
Combine like terms in (3x+5)+(4x-30
tresset_1 [31]

Answer:

The answer is 7x-25

Step-by-step explanation:

(3x+5)+(4x-30)

=3x+4x+5-30

=7x-25

3 0
3 years ago
Read 2 more answers
If g(x)=3x+2, what is the value of g(0)?
kati45 [8]

Answer: g(0) = 2

Step-by-step explanation:

g(x)=3x+2

g(0)=3(0)+2

=2

7 0
3 years ago
Other questions:
  • Find the value of x for which ABCD must be a parallelogram
    12·1 answer
  • Janie has $3. She earns $1.20 for each chore she does and can do fractions of chores. She wants to earn enough money to buy a CD
    9·2 answers
  • A scientist is observing the grizzly bear population in two state parks. The parks each have 150 bears when he begins observing
    7·2 answers
  • Which set of ordered pairs has point symmetry with respect to the origin (0, 0)?
    5·1 answer
  • Which steps can be used to solve StartFraction 6 Over 7 EndFraction x + one-half = StartFraction 7 Over 8 EndFraction for x? Che
    9·2 answers
  • Order the numbers from least (top) to greatest (bottom). Move to Bottom -9 |-6| |-5| -4 |-3| |-2| |1
    5·1 answer
  • Mo's Farm stand hold a total of 165 pounds of apples and peaches. she sold apples for $1.75 per pound and peaches for $2.50 per
    7·1 answer
  • What is 15% of a circlee in degrees
    7·2 answers
  • 4. Lynn can walk two miles intenta
    6·1 answer
  • Simplify.<br><br> (–28xy) ÷ (–4)<br><br><br> −7xy <br><br> 17ab <br><br> −17ab <br><br> 7xy
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!