chapter 1 Geometric Twins - Part 6

If △ABC is an equilateral triangle and AD is an altitude to BC, then △ABD and △ACD are:

Type: MCQ • Marks: 1
If △ABC is an equilateral triangle and AD is an altitude to BC, then △ABD and △ACD are:
Options
A. Different in area
B. Congruent by RHS (or SAS/SSS)
C. Not congruent
D. Similar only
Explanation
AD is perpendicular, AB = AC, AD is common => △ABD ≅ △ACD.
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Class 7th Ganita Prakash 2

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