3 years ago

A sector with a central angle measure of 4pi/5

Mathematics

2 answers:

ELEN [110]3 years ago

4 0

Answer: the area is 20 square centimeters.

Step-by-step explanation:

The area of an arc of angle x in a circle of radius r is:

A = (x/3.14)*3.14*r^2 = x*r^2

here we have x = (4/5)*3.14 and r = 5cm

Then the area is:

A = (4/5)*(5cm)^2 = 20cm^2

Vesna [10]3 years ago

3 0

Answer:

10pi^2

Step-by-step explanation:

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