Question

Tolong di jawab kakak


plis​

Answer 1

Verified answer

Jawaban:

29a. O

29b. AOB

29c. OA atau OB atau OC

29d. AC

29e. ADC

30a. 33 cm

30b. 231 cm²

Penjelasan dengan langkah-langkah:

30a.

[tex]sudut \: juring \: (aob) ={135}^{o} [/tex]

[tex]radius \:(r) = 14 \: cm[/tex]

[tex] \frac{135}{360} = \frac{ ab}{\frac{22 }{7} \times 2 \times 14} [/tex]

[tex] \frac{135 \times 88}{360} = ab[/tex]

[tex]ab \: = \frac{135 \times 88}{360} [/tex]

[tex]ab = 33 \: cm[/tex]

30b.

[tex] \frac{135}{360} = \frac{ luas \: juring}{\frac{22 }{7} \times {14}^{2} } [/tex]

[tex] \frac{135}{360} = \frac{ ab}{616} [/tex]

[tex] \frac{135 \times 616}{360} = luas \: juring[/tex]

[tex]luas \: juring \: = \frac{135 \times 616}{360} [/tex]

[tex]luas \: juring = 231 \: {cm}^{2} [/tex]