Question

HELP find value

Answer 1

click on pic

Answer 2

@hartnn help?

Answer 3

using a property in right triangle :
BD^2 = 7*11
BD = ?

Answer 4

bd = 77^2?

Answer 5

lol! no :P

Answer 6

D:

Answer 7

\(BD^2=7*11 \\ BD =\sqrt{77}=?\)

Answer 8

8.77

Answer 9

wait keep that as \(\sqrt{77}\)
now apply pythagoras in BDC
what do u get ?

Answer 10

wait what???

Answer 11

confused!!!

Answer 12

@hartnn

Answer 13

just apply pythagoras in triangle BDC, can u ?

Answer 14

no idk how lol just explain and ill try to

Answer 15

@hartnn

Answer 16

pythagoras!
\(a^2+b^2=c^2 \\ BD^2+BC^2=BC^2 \\7^2+77=m^2\)
can u find m now ?

Answer 17

126!!!!

Answer 18

sorry BD^2 + DC ^2=BC^2

Answer 19

126?

Answer 20

yup, \(\sqrt{126}\)
D.

Answer 21

ohhhh lol

Answer 22

help me solve this one plz?

Answer 23

just show me step by step

Answer 24

new question, new post.

Answer 25

that is lengthy!

Answer 26

http://openstudy.com/study#/updates/5059fae1e4b0cc1228937634