Answer:
1.
A1= 30 cm×40 cm= 1200 cm²
A2= 10 cm×20 cm= 200 cm²
Area of the shaded region:
1200 cm²-200 cm² = 1000 cm²
2.
A1= 8×8= 64ft²
A2= (pi)r²= 3.14×4²=50.24ft²
64ft²- 50.24ft²= 13.76ft²
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Answers & Comments
Answer:
1.
A1= 30 cm×40 cm= 1200 cm²
A2= 10 cm×20 cm= 200 cm²
Area of the shaded region:
1200 cm²-200 cm² = 1000 cm²
2.
A1= 8×8= 64ft²
A2= (pi)r²= 3.14×4²=50.24ft²
Area of the shaded region:
64ft²- 50.24ft²= 13.76ft²