zyashiabowser54 zyashiabowser54
  • 01-09-2021
  • Mathematics
contestada

Need help with these

Need help with these class=

Respuesta :

Peteru
Peteru Peteru
  • 01-09-2021

Answer:

  1. C
  2. Not clear
  3. A
  4. A
  5. C

Step-by-step explanation:

1) 2x + 246 = 360° (Vertically opposite and angle at a point)

2x = 360 - 246

2x = 114°

x = 114 / 2

x = 57°

3) Since <ABD is a right angle (i.e its sum is 90°)

<CBD = 90° - 75° = 15°

5) <1 = <2 (Vertically opposite angles are equal)

12x + 3 = 10x + 15

12x - 10x = 15 - 3

2x = 12

x = 6

Therefore,

<2 = 10(6) + 15

<2 = 75°

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