Question

In the figure, an equilateral triangular corner with side lengths $DB=EB=1$ is cut from equilateral triangle $ABC$ of side length $3$. The perimeter of the remaining quadrilateral $ADEC$ is

• A. $8$
• B. $6\frac{1}{2}$
• C. $7$
• D. $7\frac{1}{2}$

Answer 1

The correct option is A $8$

Perimeter of $ADEC$

$=3+2+2+1$

$=8unit$