Find the area of quadrilateral PQRS in which PQ is 5cm ,QR is 12cm,RS is 10cm,SP is 13cmand PR is 13 cm
Answers
Answered by
7
Firstly devide that quadrilateral in two triangles and then find out the area of both the triangles by heron's formula and then add the areas of both the triangles
Heron's Formula =√s(s-a)(s-b)(s-c)
Here, s= half of perimeter of triangle
a,b,c =sides of triangles......
sonali0786:
thanks
Answered by
12
ANSWER:
step-by-step explanation
In ∆PQR
perimeter=13+12+5=30
s- semi perimeter = =15cm
AREA OF TRIANGLE PQR=
=
=
=
=
=
NOW In ∆RSP
perimeter=13+13+10=36
s- semi perimeter = =18cm
=
=
=
=
=
ADDING AREA OF ∆PQR AND ∆RSP
+
=
Similar questions