Question

Q.

4⁴ ÷ 4²
= ...

Panjang persegi panjang yg lebar ny 10 dm dan kelilingnya 40 dm adalah...

Nt:
Selamat Hari Raya Idul Fitri untuk yg merayakan. Mohon maaf lahir & batin.

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Answer 1

• Soal 1

Cara 1

4⁴ ÷ 4²

= (4 x 4 x 4 x 4) ÷ (4 x 4)

= (16 x 16) ÷ 16

= 256 ÷ 16

= 16

Cara 2

4⁴ ÷ 4²

= 4⁴-²

= 4²

= 4 x 4

= 16

• Soal 2

K = 2 (p + l)

40 = 2 (p + 10)

40 = 2p + 20

-2p = 20 - 40

-2p = -20

p = -20 ÷ -2

p = 10 dm

Answer 2

penyelesaian :

-----------------------

= 4⁴ ÷ 4²

= 4⁴-²

= 4²

= 4 × 4

= 4 + 4 + 4 + 4

= 8 + 4 + 4

= 12 + 4

= 16

=====================

Panjang persegi panjang yg lebar ny 10 dm dan kelilingnya 40 dm adalah...
______

lebar = 10 dm

keliling = 40 dm²

p = ( k ÷ 2 ) - l

p = ( 40 ÷ 2 ) - 10

p = 20 - 10

p = 10 dm

pembuktian :

k = 2 ( p + l )

k = 2 ( 10 + 10 )

k = 2 ( 20 )

k = 40 dm²