find the area of the polygon please
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Answer:
18.84 cm²
Step-by-step explanation:
If we divide like I have done in the picture, we get a triangle and a rectangle....
Area of triangle= 1/2× base× height
Base= 1 +1+1.8= 3.8 cm
Height= 10.2-5.4= 4.8 cm
Area= 1/2× 3.8× 4.8= 9.12 cm²
Area of rectangle= length× breadth
Length= 5.4 cm
Breadth= 1.8 cm
Area= 5.4×1.8= 9.72 cm²
Total area= 9.12+9.72= 18.84 cm²
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