Question

In the figure below, if the length of AB is 10, find the length of AD

Answer 1

use the pythagorean theorm i think..what kind of figure is it?

Answer 2

whats that heartish shape, like after 10?

Answer 3

i found AC only....no AED is a triangle and ACB is inside of it

Answer 4

hmm i did this last year, wats AE

Answer 5

AE is not given... AB=10, CB=8 and ED=10

Answer 6

AC is 6 rite?

Answer 7

yap

Answer 8

the answer is 25/2 but i cant figure out how

Answer 9

OMG wait i think noe, wait i have to get ma last year notes...

Answer 10

k

Answer 11

figured it out myself :P

Answer 12

kk...there are special triangles:
there are 45-45-90 triangles ( right triangles)
they have rules:
if you want to find their hyp i is the squareroot of two times on of the legs (45)
then there are 30-60-90 (also rite triangles)
their rules:
to find the long leg, it is the squarroot of three times the short leg
to find the hyp, you must multiply the short leg by 2
HOPE THIS HELPS!!!

Answer 13

oh..

Answer 14

there is actually another formula for it..forget the name but this is how it goes.... CB/ED = AB/AD

Answer 15

therefore 8/10=10/AD..which gives me 25/2

Answer 16

ohh thanks i will try to remeber it as a reference..YOU LEARN A NEW THING EVERYDAY!!;)