Mathematics
Mathematics, 18.07.2019 16:30, emily200705

The two circle graphs show how elizabeth and lisa spent a thursday evening. in which category did both elizabeth and lisa spend of their time? 10 points will be given if u me ; )a. eatingb. surfing the internetc. talking on the phoned. watching tvwatching tv23%talking on phone20%doing homework 17%other 19%eating 11%intertant time 10%elizabethlisatv 18%homework 15%phone 20%other 11%eating 12%intertant 24% 

answer
Answers: 1
Answer
answered: Guest

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

=\sqrt{(9-6)^{2} +(12-6)^{2} } \\=\sqrt(45)=3\sqrt(5)

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

=\sqrt{(3-2)^{2} +(2-4)^{2} } \\=sqrt(5)

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

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