Hoe groot is de hoek in C van deze rechthoekige driehoek ABC waarbij |AB| = |BD| ?
|
A. 20° |
|---|
| B. 35° |
| C. 45° |
| D. 50° |
| E. 70° |
[ 3-8666 - op net sinds 2.5.2021-(E)-2.11.2023 ]
Translation in E N G L I S H
IN CONS
IN CONSTR
IN CONSTRUC
IN CONSTRUCTI
IN CONSTRUCTION
|
A. |
|---|
| B. |
| C. |
| D. |
| E. |
Oplossing - Solution
1ste manier :
In ADC is C = 180° − 20° − (180° − 70°) = −20°+ 70° = 50°
2de manier :
In ABC is C = 90° − (180° − 2.70°) = 90° − 40° = 50°
