Question

In the adjoining figure. $CDE$ is an equilateral triangle and $ABCD$ and $DEFG$ are squares. The measurement of $\angle GDA$ is

• A. ${90}^o$
• B. ${105}^o$
• C. ${120}^o$
• D. ${135}^o$

Answer 1

Answer: (C)

$ABCD,DEFG$ squq

$\Rightarrow \angle ADG=360-180-60$

$=300-180$

$={120}^o$ Ans $\left(C\right)$