Question

Awape hos L200 miles and Looo females of these 900 are and the
children whese roos in the simples forme
A Number of females to the total population =
BAcuts tochildren
c Moles to adults
2. Children to the total population =yteytygeryeriu5turrnuttyt8tt ttu6ry6t8f4
$113559256535$
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Answer 1

Step-by-step explanation:

ABC is triangle E and F are the mid points of AB and CD respectively EFII BC, if BC=8 cm , then

find the value of EFANSWER

Let G be the centroid of triangle ABC. Given E and F are the mid points of BC and AC respectively. Thus, by mid point theorem, AD∥EF

AB=2EF

AD=EF (I) (D is mid point of AB)

Now, In △ADG and △GEF,

∠AGD=∠EGF (Vertically opposite angles)

AD=EF (From I)

∠ADG=∠GFE (Alternate angles for parallle lines EF and AD)

△ADG≅△EGF (ASA rule)

Thus, AG=GE  (Corresponding sides)

Also, DG=GF (Corresponding sides)

Thus, AE and DF bisect each other at G.