Jwbbannya yaaaa buat ltihan bsok…​

Jawabannya=

B.48cm

Dik=

b = 4x

c = 3x

a = 20

Dit=

k??

Penyelesaian=

a² = b² + c²

(20)² = (4x)² + (3x)²

400 = 16x² + 9x²

400 = 25x²

16 = x²

x = 4cm

maka,

b = 4x

b = 4(4cm)

b = 16cm

c = 3x

c = 3(4cm)

c = 12cm

Jadi,

K = a+b+c

K = 20 cm + 16cm + 12cm

K = 48cm

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