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sergeinik [125]
3 years ago
15

Tina describes four triangles as shown below:

Mathematics
2 answers:
Anarel [89]3 years ago
6 0

Lets go over each triangle to find if it is unique or not,

Triangle A

All sides have length 12 cm

Under side-side-side property, as we know the length of all three sides of the triangle

Therefore it is <u>an unique triangle</u>

Triangle B

Two sides have length 10 cm and the included angle measures 60 degrees

This falls under the Side-Angle-Side property, where we know the length of 2 sides of a triangle and an included angle of the triangle

Therefore it is <u>an unique triangle</u>

Triangle C

Base has length 15 cm, and base angle measures 40 degrees

This goes under the Angle-Side-Angle property, where we know measurements of two angles and an included side

Therefore it is <u>an unique triangle</u>

<u />

Triangle D

All angles measure 60 degrees

For this, we know the measurements of all the angles but we don't know the measurements of any sides.

Therefore it is <u>a non-unique triangle</u>

<u />

The answer to this question Triangle D

Happy to help :)

If u haven't understood any topic pls feel free to ask

Darya [45]3 years ago
4 0

Answer:34

Step-by-step explanation:

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