evenwijdig parallel α 140° gricha - v8539 - 2.8.2022
Hoe groot is hoek α ?
A.  30°
B.  40°
C.  50°
D.  60°
E.  70°
A    B    C    D    E 

[ 2-8539 - op net sinds 1.1.2020-(E)-2.11.2023 ]

Translation in   E N G L I S H

evenwijdig parallel α 140° gricha - v8539 - 1.8.2022
What is the measure of angle α ?
A.   30°
B.   40°
C.   50°
D.   60°
E.   70°

Oplossing - Solution

90° + 140° + (180° − α ) = 360°
230° + 180° − α = 360°
410° − 360° = α
α = 50°
gricha