Kak bantuin donk mkaish By Admin ReiPosted on December 10, 2022 Kak bantuin donk mkaish ∠a + ∠b = 90° (4x + –1) + (2x + 7)=90° ...6x + …6 =90° 6x = 90° – 6 6X = 84 X = 84 : 6 X= 14 jadi hasilnya 14