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
lana66690 [7]
3 years ago
9

76 cm a 52 cm Find the area of the regular pentagon (the answer has one digit after the decimal point)​

Mathematics
1 answer:
alekssr [168]3 years ago
5 0

Answer:

98.8 cm²

Step-by-step explanation:

Hi there!

A=\frac{1}{2} Pa where P is the perimeter of the pentagon and a is the apothem (the line going from the center of the pentagon one edge)

<u>1) Find the perimeter</u>

P=5l where l is the side length

Plug in the side length 7.6 cm

P=5(7.6)\\P=38

Therefore, the perimeter of the pentagon is 38 cm.

<u>2) Find the area</u>

A=\frac{1}{2} Pa

Plug in the perimeter (38) and the apothem (5.2)

A=\frac{1}{2} (38)(5.2)\\A=\frac{1}{2} (38)(5.2)\\A=\frac{1}{2} (197.6)\\A=98.8

Therefore, the area of the pentagon is 98.8 cm².

I hope this helps!

You might be interested in
(-8, -2) and (1, 9) find the slope
sergejj [24]

Answer:

11/9

Step-by-step explanation:

To find the slope

m = ( y2-y1)/(x2-x1)

    = ( 9 - -2)/(1 - -8)

    = ( 9+2)/ (1+8)

    = 11/9

6 0
2 years ago
Find the perimeter of rectangle whose length is 40 and the diagonal is 41 cm<br>​
Bond [772]

Answer:

<h2>              P = 98 cm</h2>

Step-by-step explanation:

Given one side and diagonal of rectangle we can use Pythagorean theorem to calculate the other side of it.

L=40\, cm\\D=41\,cm\\W=\ ?\\\\W^2+L^2=D^2\\\\W^2+40^2=41^2\\\\W^2+1600=1681\\\\W^2=81\\\\W=9

Perimeter:

P = 2W + 2L = 2•40 + 2•9 = 80 + 18 = 98

4 0
3 years ago
Is number 2 a x or y intercept
balu736 [363]

Hello there!

Number 2 certainly isn't an x or y intercept since it isn't meeting with any axis, however, it is the vertex of the parabola as shown in the graph.

7 0
3 years ago
Does anyone know how to do this <br><br>csc x ( sin x + cos x) = 1 + cot x ​
Dima020 [189]

9514 1404 393

Explanation:

Use the identities ...

  csc(x) = 1/sin(x)

  cot(x) = cos(x)/sin(x)

__

  \csc(x)(\sin(x)+\cos(x))=1+\cot(x)\\\\\dfrac{1}{\sin(x)}(\sin(x)+\cos(x))=1+\cot(x)\\\\\dfrac{\sin(x)}{\sin(x)}+\dfrac{\cos(x)}{\sin(x)}=1+\cot(x)\\\\1+\cot(x)=1+\cot(x)

8 0
3 years ago
I need new music <br> I hate country and I'm a guy<br> I like chill vibes like joji for example
Volgvan
Check mr. worldwide on spotify, his 4 mg entertainment has really good chill music.
3 0
3 years ago
Read 2 more answers
Other questions:
  • given the height and the circumference of the base of a cylinder describe how to find the surface area of the entire cylinder
    15·1 answer
  • What is something new you want to do ?
    15·2 answers
  • The manager of the toy store at the mall is curious about why nobody is buying the new robot toys. He's very annoyed because he
    10·1 answer
  • Have this done correctly for brainliest​
    13·2 answers
  • Given: △ACM, m∠C=90°, CP ⊥ AM
    14·1 answer
  • MIDNIGHT HOMEWORK -1 5/6 divided by (-3 1/3 plz help me
    15·1 answer
  • 1. A limited-edition soccer ball costs $30, and the<br> sales tax is 6%. What is the total cost?
    6·2 answers
  • Gary is 4 years less than three times his brothers age, b. The sum of Gary and his brothers' age is 52. Write an equation to rep
    9·1 answer
  • Will someone please tell me step by step how to solve this.
    14·1 answer
  • When calculating the effective rate of a loan, which statement or statements must be true if n is equal to 1? I. The nominal rat
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!