Question

alguém humilde pra me ajudar ​

Answer 1

Resposta:

1-

x + 32 = 90 => x = 90 - 32 => x = 58°

2-

• 6x + 15 = 3 (2x + 5), logo:

180° = 4 (2x + 5)

180 = 8x + 20

-8x = - 180 +20 (-1)

8x = 180 - 20

8x = 160

x = 160/8

x = 20°

• ângulo azul/agudo: a = 2x + 5 => a = 2 × 20 + 5 => a = 40 + 5 => a = 45°

3-

•10x - 40 = 4x + 20

10x - 4x = 20 + 40

6x = 60

x = 10

•CVA = 10 × 10 - 40

CVA = 100 - 40

CVA = 60°

4-

3x + 10 + 144 - 4x + 4x + 4 + 5x + 4 + 54 = 360

3x - 4x + 4x + 5x = 360 - 10 - 144 - 4 - 4 - 54

8x = 360 - 216

8x = 144

x = 18°

5-

• 5x - 30 + 2x = 180

5x + 2x = 180 + 30

7x = 210

x = 30°

• x + 16 + 62 + 3x - 22 = 180

x + 3x = 180 - 16 - 62 - 22

4x = 80

x = 20°