Math, asked by nihar3793, 9 months ago

triangle abc~triangle def if ab=11 cm bc=10cm de=5.5cm then ef=?​

Answers

Answered by Anonymous
4

Step-by-step explanation:

Triangle ABC and DEF are two similar triangle.

Therefore,

(1) their corresponding angles are equal and

(2) their corresponding sides are proportional

= AC / DF = BC/ EF = 2.5/7.5=3.5/EF

= EF= 3.5×7.5/2.5= 3.5×3= 10.5cm

again,

AB/DE=BC/EF= 4/DE=3.5/10.5

DE=105×4/35=12cm

PERIMETER of triangle DEF= sum of all three sides.

DE+EF+DF= 12+10.5+7.5= 30cm

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