Page 72 - Math Course 3 (Book 2)

Identifying Triangles: Angles and Sides

Classify Triangles by Sides
Identify the scalene triangles in the figure if
UV ≅ VX ≅ UX.

V

W
Y Z
T

Which of the following triangles are isosceles?

U X A. ΔABC and ΔABD
B. ΔADE and ΔAEB
Scalene triangles have no congruent sides. C. ΔBED and ΔACB
D. ΔACD and ΔACB
ΔVYX, ΔZTX, ΔVZU, ΔYTU, ΔVWX,
Answer
ΔZUX, and ΔYXU are scalene. Answer

Your Turn!

Classify Triangles by Angles
Which of the following triangles is scalene?
ARCHITECTURE
The frame of this window design is made up of A. ΔABE
many triangles. Classify ΔABC. B. ΔACE
C. ΔADE
A. acute D. ΔABD
B. equiangular
C. obtuse
D. right

Answer Answer

Classify ΔACD.

A. acute
B. equiangular
C. obtuse
D. right

Answer

Classify ΔADE.

A. acute
B. equiangular
C. obtuse
D. right

Answer

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