12-01-2020
Mathematics

contestada

The triangles in the figure are similar. What is the length of CD?

I know the answer is 21 but idk why can someone explain?

The triangles in the figure are similar What is the length of CDI know the answer is 21 but idk why can someone explain class=

Respuesta :

kenlingdad kenlingdad

12-01-2020

Answer:

In steps

Step-by-step explanation:

ΔABE ~ ΔACD

AB / AC = BE / CD

3 / 9 = 7 / CD

CD = (9 x 7) / 3 = 63 / 3 = 21

Answer Link

Otras preguntas

which of the following statements are true of the u.s. federal system? multiple select question. the authority of the national government has expanded greatly s

researchers assessing the significance of the characteristics of who wrote the content is known as linking content to producers

the purchase of government securities from the public by the fed will cause group of answer choices commercial bank reserves to decrease. demand deposits to dec

Clay Township owned an idle parcel of real estate consisting of land and a factory. Clay gave title to this realty to Wolf Co. as an incentive for Wolf to estab

a mechanical connection known as a clevis and pin is shown. the dimensions of the assembly are given as: a

which procedure is a surgical repair of the skull? question 19 options: craniocele cranioplasty craniotomy craniometry craniomalacia

which of the following is not a major variable to consider within the discipline of is project management?

If energy flows into a chemical system and out of the surroundings, what is the sign of ΔEsystem? If energy flows into a chemical system and out of the surround

reasonable suspicion may be defined as that standard or amount of evidence necessary to affect an arrest when an officer has reason to believe that the accused

Question 8? Please write each equation and answers by steps w/0 words and if I have a question I’ll ask