Question

Find the value of x in each case. Give reasons to justify your solutions!
B, C ∈ AD

Answer 1

Explanation:

DCF is 90°

so to find BCE

BCE+64+90=180

BCE=26°

CBE is (180-3x)

taking triangle BEC

(180-3x)+x+26=180

180-3x+x+26=180

-2x+26=0

-2x=-26

x=13