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
marta [7]
3 years ago
7

what is the approximate area of a regular pentagon with a side lenghtt of 6 feet and a distance from the center to a vertex of 6

feet
Chemistry
1 answer:
Degger [83]3 years ago
6 0
A regular pentagon may be divided into 5 congruent triangles.


If the side of the pentagon is 6 feet, each base of the triangles will be 6 feet.


If the distance from the center to a vertex is 6 feet, all the sides of the triangles will 6 feet.


So there are 5 congruent, equilateral triangles each with side equal to 6 feet.


The area one of those triangles is calculateb by:


base * height / 2


height ^2 = (side length) ^2 - (side length /2)^2 = 6^2 - 3^2 = 36 - 9 = 27


=> height = √(27) ≈ 5.2 feet


And, using area = base * height / 2 ,


area of a triangle = 6 feet * 5.2 feet / 2 = 15.6 feet^2


And the area of the entire pentagon equals 5 triangles ≈ 5 * 15.6 feet^2 = 78 feet^2


Answer: 78 feet^2
You might be interested in
Lead has a density of 11.29 g/mL. If you had 186 g of lead, what would its volume be?
Varvara68 [4.7K]
I think you just do 11.29 multiplied by 186 since to find density you divide mass by volume. So 186 divided by x is 11.29. So in conclusion the volume would be 2,099.94mL
8 0
3 years ago
1 poin
8090 [49]

Answer:

It's called Independent variable

Explanation:

....

4 0
3 years ago
What are properties of carbon
nirvana33 [79]

The physical and chemical properties of carbon depend on the crystalline structure of the element. Its density fluctuates from 2.25 g/cm³ (1.30 ounces/in³) for graphite and 3.51 g/cm³ (2.03 ounces/in³) for diamond. The melting point of graphite is 3500ºC (6332ºF) and the extrapolated boiling point is 4830ºC (8726ºF).

6 0
3 years ago
How does the tetrad form.
Pepsi [2]

Answer:

Tetrad formation occurs during the zygotene stage of meiotic prophase. ... The result of synapsis is a tetrad. Homologous pair of chromosomes that are close to each other and form a synaptonemal complex is called a tetrad. During synapsis, the homologous pairs of sister chromatids line up together and connect.

Explanation:

CAN I HAVE BRAIN PLS

HAVE A GOOD DAY

GOD BLESS

8 0
2 years ago
Read 2 more answers
Which products would result from the double replacement reaction between mgcl2(aq) and na2co3(aq)?
Andrew [12]
Double displacement reactions are when the cations and anions of 2 compounds are exchanged. Cation of one reactant will form a new product with the anion of the other reactant and vice versa.
MgCl₂ --> Mg²⁺  + 2Cl⁻
Na₂CO₃ --> 2Na⁺ + CO₃²⁻
the cations and anions are exchanged therefore double displacement reaction is as follows;
MgCl₂(aq) + Na₂CO₃(aq) --> MgCO₃(s) + 2NaCl(aq)
8 0
3 years ago
Other questions:
  • Which weak acid would be best to use when preparing a buffer solution with a ph of 9.20?
    14·2 answers
  • Which describes an example of genetic engineering?
    15·2 answers
  • What is the pressure of 0.540 mol of an ideal gas at 35.5 L and 223 K? Use mc031-1.jpg and mc031-2.jpg.
    12·2 answers
  • What is the difference between concentrated acid and a weak one?
    6·1 answer
  • Maintaining constant pressure, the volume of a gas is increased from 12,0 L
    12·1 answer
  • For the balanced chemical reaction
    5·1 answer
  • Is CaO binary or polyatomic?
    12·2 answers
  • Which of the following is NOT true of white dwarfs?
    7·2 answers
  • What is the part of plant from where <br>new flowers of fruit grows called​
    13·1 answer
  • Can propanol become oxidised to propanoic acid
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!