Jawaban:
Tentukan luas persegi panjang jika kelilingnya 12 cm dan lebarnya 5 cm!
Keliling = 2(p + l)
12 = 2(p + 5)
12 = 2p + 10
12 - 10 = 2p
2 = 2p
p = 2/2
p = 1 cm
Luas persegi panjang :
Tentukan keliling persegi panjang jika luasnya 12 cm² dan lebarnya 3 cm!
Luas = p × l
12 = p × 3
p = 12/3
p = 4 cm
Keliling persegi panjang :
'비상'
..
[tex]\begin{aligned} Luas &= p × l \\&= (\frac{K-2l}{2}) × l \\&= (\frac{12 - 2(5)}{2}) × 5 \\&= 1 × 5 \\&= 5~cm² \end{aligned}[/tex]
[tex]\begin{aligned} K &= 2(p + l) \\&= 2(\frac{L}{l} + l) \\&= 2(\frac{12}{3} + 3) \\&= 2(4 + 3) \\&= 2(7) \\&= 14~cm \end{aligned}[/tex]
[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 02 - 04 - 2023}}[/tex]
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Verified answer
Jawaban:
Nomor 1.
Tentukan luas persegi panjang jika kelilingnya 12 cm dan lebarnya 5 cm!
Luas persegi panjang
Keliling = 2(p + l)
12 = 2(p + 5)
12 = 2p + 10
12 - 10 = 2p
2 = 2p
p = 2/2
p = 1 cm
Luas persegi panjang :
Nomor 2.
Tentukan keliling persegi panjang jika luasnya 12 cm² dan lebarnya 3 cm!
Keliling persegi panjang
Luas = p × l
12 = p × 3
p = 12/3
p = 4 cm
Keliling persegi panjang :
'비상'
Bangun Datar
[Persegi Panjang]
..
一番
[tex]\begin{aligned} Luas &= p × l \\&= (\frac{K-2l}{2}) × l \\&= (\frac{12 - 2(5)}{2}) × 5 \\&= 1 × 5 \\&= 5~cm² \end{aligned}[/tex]
ナンバー2
[tex]\begin{aligned} K &= 2(p + l) \\&= 2(\frac{L}{l} + l) \\&= 2(\frac{12}{3} + 3) \\&= 2(4 + 3) \\&= 2(7) \\&= 14~cm \end{aligned}[/tex]
[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 02 - 04 - 2023}}[/tex]