Matematika Sekolah Dasar kak tolong bantu kerjakan soalnomor 2ABCDsemoga yang bantu masuk surga​

kyrashanahanulv – May 11, 2023

kak tolong bantu kerjakan soal
nomor 2
ABCD
semoga yang bantu masuk surga​

Jawab:

A. Lebar = 10cm
Luas = 140cm

B. Lebar = 32cm
Keliling = 104cm

C. Panjang = 30cm
Luas = 360cm

D. Panjang = 35cm
Luas = 1.050cm

Penjelasan dengan langkah-langkah:

Rumus: Keliling = 2(p+l)

Luas = Pxl

A. Keliling = 2(p+l)

48 = 2 (14 +l)

48 = 28 + 2l

48 - 28 = 2l

20 = 2l

20/2= l

Lebar = 10cm

Luas = Pxl

= 10 x 14

= 140cm

B. 640cm = 20 x l

= 640/20 = l

= Lebar = 32cm

K= 2 ( 20 + 32)

= 52 x 2

= 104cm

C. K= 2(p + 12)

= 84 = 2p + 24

= 84 - 24 = 2p

= 60 = 2p

= 60/2 = p

= Panjang = 30cm

Luas = 30 x 12

= 360cm

D. 130 = 2 (p + 30)

= 130 = 2p +60

= 130 - 60 = 2p

= 70 = 2p

= 70/2 = p

= Panjang = 35cm

Luas = 35 x 30

= 1.050cm

Jawaban ada di fotoo, semoga membantuuuuuuuuu