chapter 1 Geometric Twins - Part 6

If two triangles have angles 40°, 60°, 80° and 40°, 60°, 80°, are they necessarily congruent?

Type: MCQ • Marks: 1
If two triangles have angles 40°, 60°, 80° and 40°, 60°, 80°, are they necessarily congruent?
Options
A. Yes, always congruent by AAA
B. Yes, by SAS
C. No, they are similar but may have different side lengths
D. Yes, by SSS
Explanation
Equal angles ensure identical shape, but without side length information, congruence cannot be claimed.
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Class 7th Ganita Prakash 2

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