gerlottj1 gerlottj1
  • 22-03-2020
  • Mathematics
contestada

Find the area of a sector with a central angle of 130° and a diameter of 7.2 cm. Round to the nearest tenth.

Respuesta :

Ursus Ursus
  • 24-03-2020

Answer:

Area of the sector=[tex]40.69 cm^2[/tex]

Step-by-step explanation:

Area of a sector of a circle= [tex]\frac{\beta }{360} *\pi *r^2[/tex]

As,  [tex]\beta =130[/tex]°

Diameter=7.2 cm

Radius= 7.2/2= 3.6 cm

[tex]\pi =\frac{22}{7}=3.14[/tex]

Putting the values in the formula:

Area:

                  [tex]\frac{130}{360}*3.14*3.6*3.6\\\\=\frac{13}{36}*3.14* 12.96\\\\=\frac{13}{36}* 40.69\\\\=0.36*40.69\\\\=40.69cm^2[/tex]

Area of the sector=[tex]40.69 cm^2[/tex]

Answer Link

Otras preguntas

please help will make brainlyest answer fast please
The swift population rise in the last 2,000 years was caused by an increase in food supply. disease immunity. technological advances. access to birth control e
Given Circle C Find the following
differences between a)solar day and rotation of Earth​
Which graph represents y=³√x ?
[tex]\int\limits^a_b {x} \, dx[/tex][tex]\sqrt[n]{x}[/tex]
Please help me!!!!!!!!!!!! Look at the attachment
what i s the formula for Compound Sentence?
Which two companies are among the "big six" enterprise platform partners used by accenture's intelligent platform services (ips) business?
f Rana, an 8-month-old child, looks for an object that has been hidden behind a screen, Rana is most likely demonstrating a basic understanding of what concept