Question

4. In the figure (not drawn to scale), ADF and BEF are triangles and EC = ED, find y.

a. 90 degree
b. 91 degree
c. 92 degree
d. 93 degree




Some one please answer this question. only give CORRECT ANSWER with CORRECT EXPLANATION.
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Answer 1

Answer:

a

Step-by-step explanation:

since ED=EC

D^=C^=28

CAB=180-(28+62)=90

so y=180-90=90

Answer 2

Answer:

a. 90°

y=90°

Step-by-step explanation:

Given:ADF and BEF are triangles and EC=ED

To find: y

proof: in triangle CED(isosceles triangle)

EC=ED

therefore, angle EDC=angle DCE(isosceles triangle property)

angle DCE=28°

Now,

angle DCE=angle ACB(opposite angled)

angle ACB=28°

In triangle ABC,

angle ABC+angle ACB=angle FAD

62°+28°=y

90°=y

option (a) is correct answer

Hope it's help u!!