Question

find area of the following polygon:​

Answer 1

AREA OF GIVEN POLYGON=AREA OF RECTANGLE + AREA IF TRIANGLE

now,

area of rectangle = l×b

=17cm×5cm

= 85cm^2

and,

area of triangle= 1/2 ×b×h

=1/2×17cm×4cm

=34cm^2

AREA OF GIVEN POLYGON=85cm^2+34cm^2

=129cm^2

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Answer 2

lenght of rectangle: 5cm

breadth of rectangle:17cm

area of rectangle: Length × Breadth

=> 5×17=85sq.cm

now,

base of triangle=17cm

height of triangle= (9-5)cm

=>4cm

area of triangle =1/2×base×height

=> 1/2×17×4= 34sq.cm

area of polygon

area of triangle+ area of rectangle

34+85

=>119sq.cm