Question

Can you solve that problem
Please ​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

7+6+9

______=11cm

2

Area of triangle 11(11-7)(11-6)(11-9)=440Cm2

Now in triangle inADC Having side 15cm,12cm and 9cm,we have

s=15+12+9

________=18cm

2

18(18-15)(18-12)(18-9)

=54cm2

There the area of quadrilateral ABCD=

____

\440+54)cm2