Math, asked by pratibha122, 1 year ago

find the area of sector whose Arc length and radius are 20 cm and 8 cm respectively​

Answers

Answered by Jk15
12

Area of sector = l× r/ 2

= 20×8/2

160/2

= 80

area of sector is 80 cm²

make it BRAINLIEST PLZZ


pratibha122: yeh
Jk15: Do plz
pratibha122: wait...m new... how do we do that?
Jk15: where i have posted my answer just above that
Jk15: it will come
Jk15: u have to click it
Jk15: If u can then do or else no issues if u can't do
pratibha122: ohh yeh I did... no worries!
Jk15: thanks dear
pratibha122: pleasure!
Answered by akshay2002
7

Radius = 8 cm

Arc length = 20 cm

Find the circumference:

Circumference = 2πr

Circumference = 2π(8) = 16π cm

Find the area:

Area = πr²

Area = π(8)² = 64π  cm²

Find the area of the sector:

Arc Length = 20 cm

Area of the sector = ( arc length / Circumference ) x Area

Area of the sector = 20/16π x 64π = 80 cm²

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