Question

ABC is isosceles with AB=AC=8 units and BC=6 units. D and E are midpoints of AB and BC respectively. what is the length of DE

Answer 1

wait...

Answer 2

\[\frac{ AD }{ AB } = \frac{ AE }{ AC } = \frac{ DE }{ BC }\]

Answer 3

\[\frac{ 4 }{ 8 } = \frac{ 4 }{ 8 } = \frac{ DE }{ 6 }\]

Answer 4

Ok?

Answer 5

now find "DE"...you can...

Answer 6

npe

Answer 7

did you understand that how I found it?

Answer 8

npe

Answer 9

\[\Delta ADE \ is \ similar \to \Delta ABC\]

Answer 10

ok

Answer 11

then did you get it?

Answer 12

no not the answer

Answer 13

\[\frac{ 4 }{ 8 } = \frac{ DE }{ 6 } \to 24=8DE \to DE=\frac{ 24 }{ 8 }\]

Answer 14

what is the first step in constructing a line parrallel to AB passing through an external point M, using only a compass and straightedge

Answer 15

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