Question

the perimeter and area of the
quadrilateral ABCD in which AB = 17 cm,
AD = 9 cm, CD = 12 cm, ZACB = 90° and
AC = 15 cm.
​

Answer 1

Answer:

perimeter = 46 cm

Step-by-step explanation:

In triangle ACB,

by Pythagorus therum ,

BC²=17²-15²

BC²= 289-225

BC=√64

BC=8cm

Now, perimeter = AB+BC+CD+DA

= 17+8+12+9

= 46 cm