Question

37. Length of sides of a quadrilateral are 9,11,12
and 14 cm and length of its diagonal is 10 cm,
Find its area'
एक चतुर्भुज की भुजाओं की लम्बाई 9,11,12 एवं 14 सेमी.
है व इसके एक विकर्ण की लम्बाई 10 सेमी. है इसका
क्षेत्रफल ज्ञात कीजिए-
3
(A) 49/5m
(B) 26/5m
(C) (2002 + 366)m (D) (30/2 + 24/6)m'​

Answer 1

Answer:

AB= 9

BC=11

CD=12

AD=14 and AC is a diagonal which is 10

In ∆ABC

9+10+11/2=15

√15(15-10)(15-9)-15-11) =30√2

In ∆ACD

14+12+10/2 =18

√18(18-14)(18-12)(18-10) =24√6

Add ∆ABC and∆ACD

30√2+24√6 answer.