Yg bisa tolong bantu​

Jawab:

1. 54

2. 54

3. 168

4. 60

Penjelasan dengan langkah-langkah:

1. <ABD + <CBD = 180°

(2x + 10)° + (x+8)° = 180

3x + 18 = 180

3x = 180 – 18

3x = 162

x= 54°

2. <rqp = 180 – 110 ⇒ 70

<P + <Q + < R = 180

x + x +2 + 70 = 180

2x + 72 = 180

2x = 180 – 72

2x = 108

x = 54 ⇒ < QPR = 54

3. q = 180 – 112

q = 168

4. <P + <Q + <R = 180

6x + 48 + 5x = 180

11x + 48 = 180

11x = 180 – 48

11x = 132

x = 12

<PRQ = 5x

= 5(12)

= 60