Answer:

Step-by-step explanation:
Look at the picture.
ΔABC and ΔDBA are similar (AA). Therefore the sides are in proportion:

We have

Substitute:
<em>cross multiply</em>

Answer:
2 28 divided by 14 is 2
Step-by-step explanation:
28÷14=2
Answer:
5/9
Step-by-step explanation:
70 is 25% of 280. 25% is the same as 1/4 and 1/4 of 280 is 70
Answer:
Step-by-step explanation: