Tolong di jawab gambar yang di atas

 = 1/2x 2 x x 2x + 2 = 24 cm²
 2x²+2x =24cm²
 x² + x = 12 cm²
 x = 3

maka,keliling segitiga adalah
=2x3 cm + 2x3 + 2 cm + 3x3 cm + 1
=6 cm + 8cm + 10 cm
=C.24 cm

 
semoga bermanfaat

L = a x t / 2
24 = (2x + 2)2x / 2
24 = (2x + 2)x
24 = 2x² + 2x
2x² + 2x - 24 = 0
x² + x - 12 = 0
(x + 4)(x - 3) = 0
x = -4 (Tidak memenuhi)
x = 3

K = 2x + 2x + 2 + 3x + 1
K = 7x + 3
K = 7(3) + 3
K = 21 + 3
K = 24 cm