Answer:
0=0
Step-by-step explanation:
Answer:

Step-by-step explanation:
If the figures are similar, then the angles are the same. So that means that angle H is equal to angle D (you can count he little arcs in the angle to find it's matching partner). Since this is true:

Which is the same as
. Solve for x by dividing both sides by 4:

Finito.
Answer:
answer is here check it
Step-by-step explanation:
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Answer:
7920
Step-by-step explanation:
12C3 × 9C2
= 220×36
= 7920