In , and are the midpoints of and respectively. The side lengths of are , and…

MATHEMATICS · Multi-part · CBSE · Mathematics · Quadrilaterals · Quadrilaterals

Problem

\triangle ABC

D

and

E

are the midpoints of

AB

and

AC

respectively. The side lengths of

\triangle ABC

are

AB = 14.4\,\text{cm}

AC = 11.8\,\text{cm}

and

BC = 17.6\,\text{cm}

. (i) Find the length of

DE

. (ii) Calculate the perimeter of

\triangle ADE