tolong di jawab yah kakak kakak!!

miasl
sudut A = x + 5
sudut B = 2x + 10
sudut c = 2x-5

A+B+C = 180
x+5 + 2x+10+2x-5 = 180
5x+10 = 180
5x= 180-10
5x= 170
x = 170 : 5
x = 34

sudut A = x + 5 = 34 + 5 = 39°
sudut B = 2x + 10 = 2(34)+10 = 68 + 10 = 78°
sudut c = 2x-5 = 2(34)-5 = 64 - 5 = 39°

termasuk segitiga lancip

klo  ngak salah segitiga lancip