1. luas persegi adalah 64 cm² hitunglah
a. ) panjang sisi persegi
b.) keliling persegi
2. keliling persegi panjang 42,6 cm.
Jika panjang 8 cm, hitunglah lebar.
tolong dijawabnya kk dengan betul cara jawabnya kak ada di atas tapi itu bukan rumus nya nya kk itu cuman cara nulis nya aja
[tex] \mathbb \color{aqua} \underbrace{JAWABAN}[/tex]
SOAL 1 :
[tex] \boxed{ \begin{aligned} \bold{s} &= \underline \bold{ 8 \: cm} \\ \bold{ K }&= \underline \bold{ 32 \: cm }\end{aligned} }\\ [/tex]
SOAL 2 :
[tex] \boxed{ \begin{aligned} \bold{ \ell} = \underline \bold{ 13,3 \: cm} \end{aligned} }[/tex]
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[tex] \mathbb \color{orange} \underbrace{PENYELESAIAN}[/tex]
SOAL 1 :
[tex] \underline{ \overline{ \boxed{ \bold{diketahui}}}}[/tex]
- Luas Persegi = 64 cm²
[tex] \\ \underline{ \overline{ \boxed{ \bold{ditanya}}}}[/tex]
- a) Panjang sisi Persegi
- b) Keliling Persegi
[tex] \\ \underline{ \overline{ \boxed{ \bold{jawab}}}}[/tex]
a) Panjang sisi persegi :
[tex] \boxed{ \begin{aligned} \sf L &= \sf {s}^{2} \\ \sf 64 &= \sf {s}^{2} \\ \sf \sqrt{64} &= \sf s \\ \bold{ 8 \: cm }&= \sf s \end{aligned}} \\ [/tex]
b) Keliling persegi :
[tex] \boxed{ \begin{aligned} \sf K &= \sf 4s \\ \sf K &= \sf 4(8 \: cm) \\ \sf K &= \bold{32 \: cm} \end{aligned} }\\ [/tex]
SOAL 2 :
[tex] \underline{ \overline{ \boxed{ \bold{diketahui}}}}[/tex]
- Keliling Persegi Panjang (K) = 42,6 cm
- Panjang (p) = 8 cm
[tex] \\ \underline{ \overline{ \boxed{ \bold{ditanya}}}}[/tex]
- Lebar (l)
[tex] \\ \underline{ \overline{ \boxed{ \bold{jawab}}}}[/tex]
[tex] \boxed{ \begin{aligned} \sf K &= \sf 2(p + \ell) \\ \sf 42,6 &= \sf 2(8 + \ell) \\ \sf 42,6 &= \sf 16 + 2 \ell \\ \sf 26,6 - 16 &= \sf 2 \ell \\ \sf 26,6 &= \sf 2 \ell \\ { \small \sf \frac{26,6}{2}} &= \sf \ell \\ \bold{ 13,3 \: cm }&= \sf \ell \end{aligned}}[/tex]
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[tex] \mathbb \color{red} \underbrace{KESIMPULAN}[/tex]
Jadi, jawabannya adalah :
SOAL 1 :
[tex] \boxed{ \begin{aligned} \bold{s} &= \underline \bold{ 8 \: cm} \\ \bold{ K }&= \underline \bold{ 32 \: cm }\end{aligned} }\\ [/tex]
SOAL 2 :
[tex] \boxed{ \begin{aligned} \bold{ \ell} = \underline \bold{ 13,3 \: cm} \end{aligned} }[/tex]
[tex] \colorbox{ff0000}{} \colorbox{ff4000}{}\colorbox{ff8000}{}\colorbox{ffc000}{}\colorbox{ffff00}{}\colorbox{c0ff00}{}\colorbox{80ff00}{}\colorbox{40ff00}{}\colorbox{00ff00}{}\colorbox{00ff40}{}\colorbox{00ff80}{}\colorbox{00ffc0}{}\colorbox{00ffff}{}\colorbox{00c0ff}{}\colorbox{0080ff}{}\colorbox{0040ff}{}\colorbox{0000ff}{}\colorbox{4000ff}{}\colorbox{8000ff}{}\colorbox{c000ff}{}\colorbox{ff00ff}{}\colorbox{ff00c0}{}\colorbox{ff00a0}{}\colorbox{ff0080}{}\colorbox{ff0040}{} [/tex]
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