1.) A=S² or S×S
=10cm
=10² or 10×10
A=100cm²
2.) A=L×W
=L-15m
=W-11m
=15×11
A=165m²
3.) I don't know sorry
4.). A=½×b×h
=½×20×30
=½×600
=⁶⁰⁰/²
A=300dm²
5.) A=π × r²
= 3.14 ×(5)²
=3.14×25
A=78.50m²
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Verified answer
1.) A=S² or S×S
=10cm
=10² or 10×10
A=100cm²
2.) A=L×W
=L-15m
=W-11m
=15×11
A=165m²
3.) I don't know sorry
4.). A=½×b×h
=½×20×30
=½×600
=⁶⁰⁰/²
A=300dm²
5.) A=π × r²
= 3.14 ×(5)²
=3.14×25
A=78.50m²
Hope it helps