Answer:
A
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Using the rule of exponents
× 
⇔ 
49
3b × 4b³ = (3 × 4) × 
= 12
50
5x² × 8x × 5x³
= (5 × 8 × 5) × 
= 200
Answer:
Step-by-step explanation:
Subtract 
from both sides:
Subtract 
from both sides:
Multiply both sides by 15:
Answer: 20 percent
The school hall is 60 percent boys and 40 percent girls.
When considering similar triangles, we need congruent angles and proportional sides.
Hence
"Angles B and B' are congruent, and angles C and C' are congruent." is sufficient to prove similarity of two triangles.
"Segments AC and A'C' are congruent, and segments BC and B'C' are congruent." does not prove anything because we know nothing about the angles.
"Angle C=C', angle B=B', and segments BC and B'C' are congruent." would prove ABC is congruent to A'B'C' if and only if AB is congruent to A'B' (not just proportional).
"<span>Segment BC=B'C', segment AC=A'C', and angles B and B' are congruent</span>" is not sufficient to prove similarity nor congruence because SSA is not generally sufficient.
To conclude, the first option is sufficient to prove similarity (AAA)
