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
Misha Larkins [42]
2 years ago
7

The angle of sector of cicle of diameter 8cm is 135 . find the area of the sector​

Mathematics
1 answer:
Naddik [55]2 years ago
8 0

Answer:

18.85 cm²

Step-by-step explanation:

The formula to find the area of a sector = θ/360 × πr²

We are given:

θ = Angle of the sector = 135°

Radius = Diameter/2

Diameter = 8cm , Hence Radius = 8cm/2 = 4cm

Hence,

Area of a sector = 135/360 × π ×(4cm)²

= 18.849555922 cm²

Approximately to the nearest hundredth = 18.85 cm²

Therefore, the area of the sector is 18.85 cm²

You might be interested in
Simplify.<br> (7y2 +2y-5) – (5y2 - 2y,3)+(-5y2 - 3y-3)
igor_vitrenko [27]

Answer: -3y2 - -3y-5 also could be written as -3y2 +3y-5

Step-by-step explanation: Just combine like terms!!!

6 0
3 years ago
Read 2 more answers
The exclamation point (!) on a billboard consists of a circle sector and circle. The radius of the sector is 9 ft, and the radiu
harina [27]

Answer:

  24.0 square feet

Step-by-step explanation:

The area of the sector is given by ...

  A = (1/2)r²θ . . . . . where θ is the angle in radians

The area of the circle is the same, with θ=2π, so is ...

  A = πr²

__

In this problem, the area of the sector is ...

  A = (1/2)(9 ft)²(24π/180) = 27π/5 ft² ≈ 16.9646 ft²

The area of the circle is ...

  A = π(1.5 ft)² = 9π/4 ft² ≈ 7.0686 ft²

Then the total area of the exclamation point is ...

  16.9646 +7.0686 ≈ 24.0 . . . ft²

The area is about 24.0 square feet.

8 0
3 years ago
Solve this please how do you select a image on brainly &gt;~
Paladinen [302]

Answer:

CLICK THE ADD ATTACHMENT

Step-by-step explanation:

3 0
2 years ago
Can y’all help me on Thai one thank you
vichka [17]

Karmin will make $18.4 for working an hour after the increase.

Step-by-step explanation:

Step 1:

First, we need to determine how much Karmin made an hour.

Karmin's hourly rate = \frac{480}{30} = 16.

So Karmen made $16 every hour that she worked. She worked for 30 hours and earned $480.

She will get a 15% increase in her hourly rate this month.

Step 2:

We need to determine how much 15% of $16 is.

15% of $16 = \frac{15}{100} (16) = 0.15 (16)= 2.4.

So her 15% increase amounts to $2.4.

So the hourly rate for this month 16 + 2.4 = 18.4.

So Karmin will make $18.4 for working 1 hour.

5 0
2 years ago
PLEASE HELP ME WITH THIS I WILL GIVE BRAINLIEST
goldenfox [79]
A because a colored circle means it’s greater than
7 0
3 years ago
Other questions:
  • Exponet form for 10x10x10x10x10x10x10
    12·2 answers
  • Draw 3 rows with 2counters in each row.write a word problem that can be acted put using these counters.
    5·1 answer
  • I know how to do this but i dont have time so like give me the answer thanks
    13·2 answers
  • Which values for x makes the sentence true ?
    7·1 answer
  • Calculate the area of this triangle.<br> 13 cm<br> 5 cm<br> -12 cm-
    14·1 answer
  • 338+35<br> Hehejdhdbdhchdsjjxxjdjdjdjdjjxdjdjjdjdjdjdjdhdjdjdhd
    8·1 answer
  • Screen shot attatched. I need help!!
    12·2 answers
  • How many faces does the following shape have?
    10·2 answers
  • Whitney wants to buy a sweater for $36. If the sales tax rate is 8.25%, what will be the amount of sales tax on Whitney’s purcha
    15·1 answer
  • What is the equation of the line in slope-intercept form?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!