PLEASE ANSWER ASAP TY In triangle ABC below, BD is the altitude. Find the length of DC. Leave your answer in
simplified radical form.

Step-by-step explanation:

Step 1: Find AB Use Pythagoras Theorem

AB =

Step 2: Find the Area of the triangle ABC

Area = =

Step 3: Find BD. Use the area of the triangle above

Area =

We already known the Area and AC so, we just plug all the number in

BD = =   =

Step 4: Find DC. Use Pythagoras Theorem of the triangle BDC

DC = = =  

x=half

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl