Matematika Sekolah Dasar The ratio of rectangle’s length and breadth is 4 : 3. If the rectangle’s area is 432 cm2, then its perimeter is​

hailiewunschulv – April 10, 2023

The ratio of rectangle’s length and breadth is 4 : 3. If the rectangle’s area is 432 cm2, then its perimeter is​

Jawab:

Penjelasan dengan langkah-langkah:

(Dalam bahasa Indonesia)

L=pxl

432cm²=4x×3x

432cm²=12x²

432cm²x1/12=12×1/12×x²

36cm²=x²

√x²=x

√36cm²=6

x=6cm

P=4x6cm=24

l=3x6cm=18

K=2x(p+l)

K=2x(24+18)

K=2x42

K=84cm

(maaf dalam bahas indonesia)

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