Yield signn - worksheet

Figure data (valid for all exercises)[br][br]Triangle[br]ABC is isosceles, with:[br]AB=12 cm,[br]AC=BC=10 cm.[br][br]Triangle DEF is located inside ABC, with:[br]DE∥AB,[br]DF∥AC,[br]EF∥BC.[br][br]The similarity ratio is:[br][br]𝑘 = DE / AB = 1/2[br][br][br]1. The length of the segment DE is:

6 cm 3 cm 10 cm

2.The length of the segment DF is:

8 cm 5 cm 4 cm

3. The perimeter of the triangle ABC is:

22 cm 30 cm 32 cm

4. The perimeter of the triangle DEF is:

12 cm 15 cm 16 cm

5. The area of the triangle ABC is:

36 [math]cm^2[/math] 60 [math]cm^2[/math][br] 48[math]cm^2[/math][br]

6. The area of the triangle DEF is:

15 [math]cm^2[/math] 24 [math]cm^2[/math] 12

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