Question

No 34 gimana gan caranya?

Answer 1

Verified answer

Jawab
<A= 60
<B = 180 - (4x-10)
<C = 180 - (3x+ 5)
_____________________(+)

180 = 420 - 4x +10  -3x - 5
180 = 425 - 7x
7x= 425 -180
7x = 245
x = 35

<B = 180 - (4x -10)
<B = 180 - 4x +10
<B = 190 - 4(35)
<B = 190- 140
<B = 50