Question

tolong pake cara, jangan ngasal please ​

Answer 1

Jawaban:

no 1.

3x-5+2x+5=90°

5x=90+5-5

5x=90

x=90/5

x=18

Answer 2

Verified answer

Jawab:

1. B, 41°

2. B, 63°

3. B, 72°

Penjelasan dengan langkah-langkah:

1. 3x -5 + 2x + 5 = 90

  5x = 90

  x  = 18

  ROQ = 2 × 18 + 5

      = 36 + 5

      = 41°

2. (4x + 25) + (3x - 6) = 180

  7x = 180 - 19

  7x = 161

  x  = 23

  AOC = 69 - 6

      = 63°

 

3. AOC + COB = 180

  8x - 20 + 4x + 8 = 180

  12x - 12 = 180

  x - 1 = 15

  x = 15+1 = 16

 

  COB = (4x+8) = 4.16 + 8

               = 64+8  

               = 72°

 

udah ya kak, tolong bikin jawaban terbaik ya, makasiii