Question

permisi yaa ka,tolong dijawab caranya bagaimana, terimakasii kaa,tapi mohon dipercepat yaa kaa,hehe​

Answer 1

Materi : Unsur - Unsur Lingkaran

Jari - Jari Lingkaran

Pb = a/360° × πd

6 = 60/360 × 3,14 × d

36 = 3,14 × d

d = 11,46496... cm

d ~ 11,5 cm

r ~ 5,75 cm

Apotema

a : t : s = 1 : √3 : 2

---

t : s = √3 : 2

t/5,75 = √3/2

t = 5,75 × √3/2

t = 2,875√3

t = 4,9795 cm

Langsung Saja

Luas Juring - Luas Segitiga

= a/360° × πr² - ½at

L = 60/360 × 3,14 × 5,75 × 5,75 - ½ × 2,875 × 4,9795

L = ⅙( 103,81625 cm² ) - ½( 14,310625 cm² )

L = 17,30270833... - 7,1553125

L = 10,147395333...

L ~ 10,15 cm²

Semoga bisa membantu

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Answer 2

Jawaban:

3,252 cm²

Penjelasan dengan langkah-langkah:

Diketahui:

Tali Busur = 6 cm

θ pusat = 60°

..

Ditanya:

Luas Tembereng?

..

Dijawab:

L Tembereng = Lθ - L∆

..

Lθ = θ/360 × π × r²

L∆ = 1/2 × a × t

..

r : 1/2a : t = 2 : 1 : √3

..

r/(1/2a) = 2/1

r/(1/2 × 6) = 2

r/3 = 2

r = 3 × 2

r = 6 cm

..

t/r = √3/2

t/6 = √3/2

t = 6√3/2

t = 3√3

t = 5,196 cm

..

Lθ = 60/360 × 3,14 × 6²

Lθ = 1/6 × 3,14 × 36

Lθ = 6 × 3,14

Lθ = 18,84 cm²

..

L∆ = 1/2 × 6 × 5,196

L∆ = 15,588 cm²

..

L Tembereng = 18,84 - 15,588

L Tembereng = 3,252 cm²

[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at}}[/tex]