See explanations.
Step-by-step explanation:
1. Triangles are similar
Reason: corresponding angles are equal/congruent.This means;
∠A≅∠D , ∠C≅∠F and ∠B≅∠E
2.
a) Triangles are similar
Reason: corresponding angles are congruent.
15/5 =a/3
3=a/3
3*3=a
a=9cm
b) Triangles are similar because angles in corresponding sides are congruent.
20/12=15/b
20b=12*15 -----cross product applied
20b=180
b=180/20
b=9 cm
c) Triangles are because angles in corresponding sides are congruent.
15/5=d/4
cross product
15*4=5d
60=5d
60/5 =d
12m =d
Learn More
Properties of similar triangles: brainly.com/question/8691470
Keywords : triangles, similar, length,
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