tolong dijawab!, dipakai jalan okee, yang ga pake jalan, gw laporkan yy?!.... Question from @rismayulia8622

falahanugrah27

Jawaban:

K = 56cm

L = 180cm²

K = 102 cm

L = 578 cm²

Penjelasan dengan langkah-langkah:

p = 18cm

l = 10cm

Keliling persegi panjang = 2 ( panjang + lebar )

= 2 ( 18 + 10 ) = 2 ( 28 ) = 56cm

K = 56cm

Luas persegi panjang = panjang x lebar

= 18 x 10

= 180cm²

p = 34cm

l = 17cm

Keliling persegi panjang = 2 ( panjang + lebar )

= 2 ( 34 + 17 ) = 2 ( 51 ) = 102cm

K = 102cm

Luas persegi panjang = panjang x lebar

= 34 x 17

= 578cm²

0 votes Thanks 1

Yourppies

Penjelasan dengan langkah-langkah:

Pertama

$\purple{ \sf \: K = 2 \times (p + l)}$

$\purple{ \sf \: K = 2 \times (18 + 10)}$

$\purple{ \sf \: K = 2 \times 28}$

$\purple{ \sf \:K = \underline{ \pink{ \boxed{ \red{ \sf56 \: cm}}}}}$

$\: \:$

$\green{ \sf \: L= p \times l}$

$\green{\sf \: L= 10 \times 18}$

$\green{ \sf \: L= \underline{ \red{ \boxed {\red{\sf180 \: {cm}^{2} }}}}}$

$\: \:$

Kedua

$\purple{\sf \: K = 2 \times (p + l)}$

$\purple{ \sf \: K = 2 \times (34 + 17)}$

$\purple{ \sf \: K = 2 \times 51}$

$\purple{ \tt \: K \: = \underline{ \purple{ \boxed{ \red{ \sf \: 102 \: cm}}}}}$

$\: \:$

$\green{ \sf \: L= p \times l}$

$\green{ \sf \: L= 34 × 17}$

$\green{ \sf \: L = \underline{ \green{ \boxed{ \red{ \sf \: 578 \: cm²}}}}}$

$\: \ \: \: \:$

Semoga membantu

1 votes Thanks 2

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