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
VikaD [51]
3 years ago
7

What is the approximate area of the regular pentagon?

Mathematics
2 answers:
Anastasy [175]3 years ago
7 0

Area of the pentagon: 342 cm2

Step-by-step explanation:

The figure of the pentagon is missing: find it in attachment.

The area of the pentagon can be seen as the area of 5 equal triangles, each of them having a base equal to the length of the side of the pentagon,

L = 14.1 cm

and the height of each triangle can be found by using Pythagorean's theorem:

h=\sqrt{12^2-(\frac{L}{2})^2}=\sqrt{12^2-(\frac{14.1}{2})^2}=9.7 cm

The area of each of the 5 triangles is

A'=\frac{1}{2}Lh

Therefore, the area of the pentagon is 5 times this area:

A=5A'=\frac{5}{2}Lh=\frac{5}{2}(14.1)(9.7)=342 cm^2

Learn more about area of regular figures:

brainly.com/question/4599754

brainly.com/question/3456442

brainly.com/question/6564657

#LearnwithBrainly

Zolol [24]3 years ago
7 0

Answer:

342 cm2

Step-by-step explanation:

got 100%

You might be interested in
Determine the area under the standard normal curve that lies to the right of the z-score 0.48 and to the left of the z-score 0.7
pychu [463]

Answer:

The area lies to the right of the z-score 0.48 means all the values greater than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = 0.48
  • Upper bound = 9999
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(0.48,9999,0,1) ≈ </u><u>0.315614</u>

<u />

The area lies to the left of the z-score 0.79 means all the values less than it. This can be calculated on a graphing calculator using the function normCdf, where

  • Lower bound = -9999
  • Upper bound = 0.79
  • Mean = 0
  • Standard deviation = 1

<u>The result would be normCdf(-9999,0.79,0,1) ≈</u><u> 0.785236</u>

6 0
2 years ago
HELP PLZ!!!!!!!!!!!!!
ArbitrLikvidat [17]
I think it is C it is like a right angle
4 0
3 years ago
Why is pi the best example of an exponent
FromTheMoon [43]

Pi is seldom useful as an exponent, and is hardly ever used as one.
If you need to show somebody an example of an exponent, I think
that pi is one of the worst examples you can choose.

3 0
3 years ago
Hey can you help me fast I need to get this grade to a 90 by 12:00 I have an 83 rn.
Nesterboy [21]

Answer:

30/50

Step-by-step explanation:

because there is a y distance of 30 and x distance of 50 from point to point.

3 0
2 years ago
What is the range of the function below in set builder notation? y=|x-3|
Kisachek [45]

Answer:  \{y | \ y \in \mathbb{R}, \ y \ge 0\}

This translates to "y is any real number such that it is 0 or larger".

The reasoning is that the result of any absolute value function is either 0 or positive. In other words, we'll never get a negative result of an absolute value function. This is due to how absolute value represents distance. Negative distance does not make sense.

So if y = |x-3| then y = 0 is the smallest output possible. We could have any positive output we want.

In terms of a graph (see below), the V shape is at the lowest point (3,0). The y coordinate is all we care about in terms of finding the range. So we see the lowest y value is y = 0.

4 0
3 years ago
Other questions:
  • Ahhhhhhhhhhhh help I need help please
    9·1 answer
  • Your mom asked you to turn the oven down to 325 degrees Fahrenheit. This is 75 degrees Fahrenheit than it was. What was the orig
    6·1 answer
  • Whats 900,000,000 X 576
    7·2 answers
  • What were the lengths of the legs of a right triangle in which measures 19 degrees and the hypotenuses 15 units long
    7·1 answer
  • Give the slope-intercept form of the equation of the line that is perpendicular to 5x+2y=12 and contains the point (2, 3)
    11·1 answer
  • I WILL GIVE BRAILYEST!!!!!
    15·1 answer
  • <img src="https://tex.z-dn.net/?f=3%5Csqrt%7B3%7D%2B5%5Csqrt%7B3%7D-2%5Csqrt%7B3%7D" id="TexFormula1" title="3\sqrt{3}+5\sqrt{3}
    7·1 answer
  • Frank is a manager of a doctor’s office. The office uses 20 sheets of paper three times a day for printing. How many sheets of p
    9·1 answer
  • Help pls ill give extra points
    15·1 answer
  • Please help.... asap
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!