Answer:
Step-by-step explanation:
- Small box = s
- Large box = l
<u>Equations:</u>
- 8s + 14l = 254
- s + 14l = 191
<u>Subtract the second equation from the first:</u>
- 8s - s = 254 - 191
- 7s = 63
- s = 9
im pretty sure that the both of the angles added have to make a total of 180 degrees so, 180-113=67
Answer: ASA postulate, that is Angle-Side-Angle postulate.
Step 4 of the proof states that the <span>triangles ADB and CBD are congruent, and the reason is that :
Angle 4 - Side BD - Angle 1 of triangle ADB are respectively equal to
Angle 3 - Side BD - Angle 2 of triangle CBD.
So we have 2 pairs of congruent angles including 2 equal sides of the triangles. This is congruence by ASA postulate.
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