21. PR=akar49+akar49=7akar2
PS=akar98+akar49=7akar3
PT=akar147+akar49=7akar4=14cm
22. 10akar2×10akar2=200cm2
akar100×akar100=100cm2
200cm2-100cm2=100cm2
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21. PR=akar49+akar49=7akar2
PS=akar98+akar49=7akar3
PT=akar147+akar49=7akar4=14cm
22. 10akar2×10akar2=200cm2
akar100×akar100=100cm2
200cm2-100cm2=100cm2