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
puteri [66]
3 years ago
15

If a pentagon has a radius of 16 find the perimeter

Mathematics
1 answer:
nignag [31]3 years ago
8 0

<u>Answer</u>:

94.05 units is the perimeter of this pentagon.

Length of each side in pentagon: 2r × Sin(180/n)

                                 <em>where r is radius and n is number of sides</em>

Using the formula: 2r × Sin(180/n)

                              : 2*16 * sin(180/5)

                              : 18.8 units

Perimeter = 5(18.8) units........5 as we know pentagon has 5 sides

                 = 94.05 units

You might be interested in
Which of the following is a polynomial with roots: − square root of 5 , square root of 5 , and 3? (6 points)
Karo-lina-s [1.5K]

Let's check the first polynomial , that is

P(x)= x^3 -3x^2 -5x+15

We need to factor it first and for that we have to do grouping and factoring .

P(x) = x^2(x-3)-5(x-3) \\ P(x) = (x^2 -5)(x-3)

TO find the roots, we need to set P(x) to 0, that is

(x^2 -5)(x-3)=0 \\ x^2 - 5= 0 , x-3 =0 \\ x^2 = 5 , x=3 \\ x = \pm \sqrt{5} , x=3

SO the correct option is A .

5 0
4 years ago
Inverse of f(x)= x^2 -1, x is greater than or equal to 0
romanna [79]

f(x)=x^2-1,\ x\geq0\\\\y=x^2-1\\\\\text{replace x with y and y with x}\\\\x=y^2-1\\\\\text{solve for y}\\\\y^2-1=x\ \ \ \ |+1\\\\y^2=x+1\to y=\sqrt{x+1}\\\\Answer:\ \boxed{f^{-1}(x)=\sqrt{x+1}}

3 0
4 years ago
How do you find the measures of angles G,E and F? Help pleez
JulsSmile [24]

m∠HDG = 28°, m∠EFG = 50°, m∠DEG = 67°, m∠DGE = 65°

Solution:

Triangle sum property:

Sum of the angles of the triangle = 180°

In ΔDHG,

m∠HDG + 120° + 32° = 180°

m∠HDG + 152° = 180°

m∠HDG = 180° – 152°

m∠HDG = 28°

In ΔGEF,

m∠EFG + 17° + 113° = 180°

m∠EFG + 130° = 180°

m∠EFG = 180° – 130°

m∠EFG = 50°

Sum of the adjacent angles in a straight line is 180°

m∠DEG + m∠DEF = 180°

m∠DEG + 113° = 180°

m∠DEG = 180° – 113°

m∠DEG = 67°

In ΔDGE,

m∠DGE + 48° + 67° = 180°

m∠DGE + 115° = 180°

m∠DGE = 180° – 115°

m∠DGE = 65°

Hence m∠HDG = 28°, m∠EFG = 50°, m∠DEG = 67°, m∠DGE = 65°.

4 0
3 years ago
Which is the unit of measurement for volume
Anna [14]

you use cubic measurements

hopes this helps

3 0
3 years ago
Read 2 more answers
Solve the following system of equations. Express your answer as an ordered
exis [7]

Answer:

I'm not going to give you an exact answer because there could be many different ones

Step-by-step explanation:

The equations can be rewritten as:

2x - 7 = 7y

-4x + 19 = 3y

then you just insert a value for x and get the answer.

8 0
3 years ago
Other questions:
  • Write the number 0.21212121.. as a fraction let x=
    12·1 answer
  • Shakira went bowling with her friends. She paid $3 to rent shoes and then $4.75 for each game of bowling. If she spent a total o
    12·2 answers
  • The perimeter of a rectangular garden is 52 feet the length of the garden is 4 less than twice the width what is the widththe
    14·1 answer
  • I need some help with a Geometry question. Please help! Thanks!
    15·1 answer
  • A group of botanists observe four types of plants for one week.
    11·1 answer
  • What is 40.53 ounces converted to liters?
    12·1 answer
  • The picture shows the graph of the movement of a pedestrian (B) and a bicyclist (A). Using the graph, answer the following quest
    14·1 answer
  • Guys if there are 5 cookies and my friend named Jake ate 5 cookies how much would I have left??
    10·2 answers
  • What is the coefficient in the expression -5x + 8?
    11·2 answers
  • 100 points !! 3 answers !!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!