Question

5. Perhatikan gambar berikut. Keliling persegi KLMN adalah.... a. 30 √2 cm b. 30 √3 cm c. 60 √2 cm d. 60-√3 cm 30 cm​

Answer 1

Penjelasan dengan langkah-langkah:

Trigonometri

sin 30° = ½

sin 60° = ½√3

sin 45° = ½√2

sin 90° = 1

sisi persegi

x/sin45° = 30/sin90°

x = sin45° × 30/sin90°

x = ½√2 × 30/1

x = ½30√2

x = 15√2

maka Keliling persegi

= 4 × 15√2

= 60√2 cm ( C ) ✓

Answer 2

Trigonometri

..

[tex]K =4 \times s[/tex]

[tex]K =4 \times ( \frac{30}{ \sqrt{2} } )[/tex]

[tex]K =4 \times ( \frac{30 \sqrt{2} }{2} )[/tex]

[tex]K =4 \times 15 \sqrt{2} [/tex]

[tex]K =60 \sqrt{2} \: \: \: \: \: opsi \: c[/tex]

..

[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]

[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 30 - 03 - 2023}}[/tex]