Question

in triangle ABC , D is the mid-point of AB AND E. calculate ( i ) DE, if AC = 8.6cm ( ii ) DEB , of ABC = 72°
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Answer 1

Answer:

DE=3.2 cm

Step-by-step explanation:

Using mid point theorem, A line segment joining the mid points of the two sides of the triangle, is equal to half the length of the third side.

D and E are the mid points. Hence,

DE=  

2

1

​

AC

DE=  

2

1

​

(6.4)

DE=3.2 cm