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melisa1 [442]
3 years ago
5

How can i solve it which method or way should I use ............. ..​

Mathematics
1 answer:
ad-work [718]3 years ago
8 0
Aliaa got a mark of 60 in her first 4 tests, so her total mark is 60 x 4 = 240. On her fifth test, she got a mark of 80.
So her average is:
(240+80)/5 = 320/5 = 64
Her avg is 64 (c).
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A sector of a circle has a diameter of 10 feet and an angle of 2π/3 radians. Find the area of the sector.
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The area of the sector  2π/3 radians with diameter 10 feet 75π feet²

The arc period of a circle can be calculated with the radius and relevant perspective using the arc period method.

Diameter =  10 feet

radius = 5 feet

angle =   2π/3 radians

⇒angle= arc/radius

⇒  2π/3 radians° =arc/10

⇒ arc =2π/3 radians *10

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Area of a circle = π*r²

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∵ area of complete circle is π25

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