Question-184199

Question Number 184199 by HeferH last updated on 03/Jan/23

Commented by HeferH last updated on 03/Jan/23

i f E i s t h e e x c e n t e r o f A B C, f i n d x

Answered by mr W last updated on 04/Jan/23

Commented by mr W last updated on 04/Jan/23

Δ D E F \equiv Δ B E G

\Rightarrow D E = B E

\Rightarrow ∠ D B E = x

\Rightarrow ∠ D B C = x - α = 180 - 40 - (x + α)

2 x = 140

\Rightarrow x = 70 ° ✓

Commented by HeferH last updated on 04/Jan/23

T h a n k y o u, I g o t t h e s a m e a n s w e r b u t o n t h e

b o o k s a y s x = 50 °, I g u e s s i t w a s a t y p o :)

(o p t i o n B) 70 °, o p t i o n D) 50 °)

Commented by mr W last updated on 05/Jan/23

x = 70 ° i s r i g h t . b o o k i s w r o n g .

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