47 Aligned or not? LV Observe the figure. Points B, A and F seem aligned. Are they? Justify the answer. C С B D rectangle A D7E 610 F

Réponse:

you must calculate angles :

all the angles of a triangle is = 180°

so AEF

90+61=180

180-90+61 =39

the angle EAC is 90°

triangle BAC has equal angles so

180÷3= 60

if they are aligned it makes a angle at 180° so

39+90+60= 189

no it's not aligned