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Mathematics
Problem
Quadrilateral
A
B
C
D
ABCD
A
B
C
D
has
A
B
=
13
cm
,
B
C
=
14
cm
,
C
D
=
17
cm
,
D
A
=
8
cm
AB = 13\ \text{cm},\ BC = 14\ \text{cm},\ CD = 17\ \text{cm},\ DA = 8\ \text{cm}
A
B
=
13
cm
,
B
C
=
14
cm
,
C
D
=
17
cm
,
D
A
=
8
cm
. Its diagonal
A
C
=
15
cm
AC = 15\ \text{cm}
A
C
=
15
cm
. Find the area of
A
B
C
D
ABCD
A
B
C
D
. a)
114
cm
2
114\ \text{cm}^2
114
cm
2
b)
144
cm
2
144\ \text{cm}^2
144
cm
2
c)
84
cm
2
84\ \text{cm}^2
84
cm
2
d)
140
cm
2
140\ \text{cm}^2
140
cm
2
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