Get detailed and accurate responses to your questions on IDNLearn.com. Join our community to receive timely and reliable responses to your questions from knowledgeable professionals.
Answer:
18
Step-by-step explanation:
For this problem, you have to look at the ratios of the corresponding sides.
Side DC and ZY correspond. It has a length of 10 and 15, respectively. So The ratio is 2:3. Same with BC and XY. If 12 is 2, than 3 must be 18 since 12x(2/3)=18