Question

Kuis ⁽¹⁴¹⁾
Perhatikan gambar berikut.
Nilai a² - b² + c - d = .........

Answer 1

Verified answer

Jawaban:

0

Penjelasan dengan langkah-langkah:

a (sisi) = 25 cm

..

b (panjang) = Luas / lebar

b = 75/3

b = 25 cm

..

c (penyiku) = hipotenusa x 1/√2

c = 25√2 x 1/√2

c = 25 cm

..

d (diameter) = 2 x √(Luas / π)

d = 2 x √490,625/3,14

d = 2 x √156,25

d = 2 x 12,5

d = 25 cm

..

a² - b² + c - d

= 25² - 25² + 25 - 25

= 0

[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alfat}}[/tex]

Answer 2

Penjelasan dengan langkah-langkah:

Nilai a

a = 25 cm

Nilai b

75 : 3 = 25 cm

Nilai c

c = 25√2 x 1/√2

c = 25 cm

Nilai d

l = 3,14 x r²

490 5/8 = 3,14 x r²

490,625 = 3,14 x r²

r² = 490,625 : 3,14

r² = 156,25

r = √156,25

r = 12,5

d = r x 2

d = 12,5 x 2

d = 25

Maka

a² - b² + c - d

= 25²-25²+25-25

= 625-625+25-25

= 0