find the area of the following polygons please answer it who will give the answer fast and correct will be marked as brilliant answer
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Answer:
Area of Ist part
Area of a triangle
base =17cm
height=9-5= 4 cm
Area of a ∆=1/2×base ×height
=1/2×17×4
=34cm sq.
Area of a rectangle
Length=5cm
breadth=17cm
area of rectangle=length×breadth
=(5×17) cm sq.
85 cm sq.
Total area
Area of ∆ + Area of rectangle
=34+85
=119cm sq.
Area of IInd part
area of ∆
Base =35 cm
height=10cm
area of ∆ = 1/2 × 35 × 10
=175 cm sq.
area of sec. ∆
base = 35 cm.
height= 10cm.
area of ∆=1/2× 35×10
=175 cm sq.
area of rectangle
Breadth = 12 cm
length = 35 cm
Area of rectangle= length × breadth
= 12×35
=420 cm.sq.
Total area
Area of both traingle + area of the rectangle
=119+420
=539 cm sq.
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