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Template - Worksheet 3.5. Similar Triangles

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Republic of the Philippines

Cebu Normal University


Osmeña Blvd., Cebu City, 6000, Philippines

College of Arts and Sciences


Telephone No.: (+63 32) 254 1452 loc. 140
Email: cnucas@cnu.edu.ph
Website: www.cnu.edu.ph

Worksheet 3.5. Similar Triangles

A. Determine whether the indicated triangles are similar or not. Then write the similarity
statements if they are similar.

Certification Date: 1 February 2021


Recertification due date: 24 January 2024
For verification of the certificate please
access www.gcl-intl.com (Certification
check and type the registration number)

Registration No. 52Q18778


Republic of the Philippines
Cebu Normal University
Osmeña Blvd., Cebu City, 6000, Philippines

College of Arts and Sciences


Telephone No.: (+63 32) 254 1452 loc. 140
Email: cnucas@cnu.edu.ph
Website: www.cnu.edu.ph

Certification Date: 1 February 2021


Recertification due date: 24 January 2024
For verification of the certificate please
access www.gcl-intl.com (Certification
check and type the registration number)

Registration No. 52Q18778


Republic of the Philippines
Cebu Normal University
Osmeña Blvd., Cebu City, 6000, Philippines

College of Arts and Sciences


Telephone No.: (+63 32) 254 1452 loc. 140
Email: cnucas@cnu.edu.ph
Website: www.cnu.edu.ph

B. For numbers 13 and 14, refer to the figure on the right.

Certification Date: 1 February 2021


Recertification due date: 24 January 2024
For verification of the certificate please
access www.gcl-intl.com (Certification
check and type the registration number)

Registration No. 52Q18778


Republic of the Philippines
Cebu Normal University
Osmeña Blvd., Cebu City, 6000, Philippines

College of Arts and Sciences


Telephone No.: (+63 32) 254 1452 loc. 140
Email: cnucas@cnu.edu.ph
Website: www.cnu.edu.ph

16. Prove the AA Corollary.

17. Each of two isosceles triangles has an angle of 45°. Does it follow that the triangles are
similar? Explain your answer.

C. For numbers 18 and 19, refer to the figure below. NOPQ is a square and ∠KON, ∠NMQ, and
∠M are right angles.

20. You and your friend are standing next to each other. Your shadow is 80 centimeters long
while your friend’s shadow is 75 centimeters long. If you are 160 centimeters tall, how tall is
your friend?

Certification Date: 1 February 2021


Recertification due date: 24 January 2024
For verification of the certificate please
access www.gcl-intl.com (Certification
check and type the registration number)

Registration No. 52Q18778

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