Datrys sqrt{20^2+60^2}+100+sqrt{20^2+40^2}+sqrt{{40}^{2}+{80}^{2}}+1.85*sqrt{{40}^{2}+{80}^{2}}+1.85*sqrt{{20}^2+{60}^2}+1.85*sqrt{{40}^2+{100}^2}=

$$\sqrt{ { 20 }^{ 2 } + { 60 }^{ 2 } } +100+ \sqrt{ { 20 }^{ 2 } + { 40 }^{ 2 } } + \sqrt{ { 40 }^{ 2 } + { 80 }^{ 2 } } +1.85 \times \sqrt{ { 40 }^{ 2 } + { 80 }^{ 2 } } +1.85 \times \sqrt{ { 20 }^{ 2 } + { 60 }^{ 2 } } +1.85 \times \sqrt{ { 40 }^{ 2 } + { 100 }^{ 2 } } =$$

Enrhifo

$$37\sqrt{29}+57\sqrt{10}+134\sqrt{5}+100\approx 779.134033479$$

Camau Ateb

Cyfrifo 20 i bŵer 2 a chael 400.

$$\sqrt{400+60^{2}}+100+\sqrt{20^{2}+40^{2}}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 60 i bŵer 2 a chael 3600.

$$\sqrt{400+3600}+100+\sqrt{20^{2}+40^{2}}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Adio 400 a 3600 i gael 4000.

$$\sqrt{4000}+100+\sqrt{20^{2}+40^{2}}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Ffactora 4000=20^{2}\times 10. Ailysgrifennu ail isradd y lluoswm \sqrt{20^{2}\times 10} fel lluoswm ail israddau \sqrt{20^{2}}\sqrt{10}. Cymryd isradd 20^{2}.

$$20\sqrt{10}+100+\sqrt{20^{2}+40^{2}}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 20 i bŵer 2 a chael 400.

$$20\sqrt{10}+100+\sqrt{400+40^{2}}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 40 i bŵer 2 a chael 1600.

$$20\sqrt{10}+100+\sqrt{400+1600}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Adio 400 a 1600 i gael 2000.

$$20\sqrt{10}+100+\sqrt{2000}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Ffactora 2000=20^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{20^{2}\times 5} fel lluoswm ail israddau \sqrt{20^{2}}\sqrt{5}. Cymryd isradd 20^{2}.

$$20\sqrt{10}+100+20\sqrt{5}+\sqrt{40^{2}+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 40 i bŵer 2 a chael 1600.

$$20\sqrt{10}+100+20\sqrt{5}+\sqrt{1600+80^{2}}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 80 i bŵer 2 a chael 6400.

$$20\sqrt{10}+100+20\sqrt{5}+\sqrt{1600+6400}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Adio 1600 a 6400 i gael 8000.

$$20\sqrt{10}+100+20\sqrt{5}+\sqrt{8000}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Ffactora 8000=40^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{40^{2}\times 5} fel lluoswm ail israddau \sqrt{40^{2}}\sqrt{5}. Cymryd isradd 40^{2}.

$$20\sqrt{10}+100+20\sqrt{5}+40\sqrt{5}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfuno 20\sqrt{5} a 40\sqrt{5} i gael 60\sqrt{5}.

$$20\sqrt{10}+100+60\sqrt{5}+1.85\sqrt{40^{2}+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 40 i bŵer 2 a chael 1600.

$$20\sqrt{10}+100+60\sqrt{5}+1.85\sqrt{1600+80^{2}}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 80 i bŵer 2 a chael 6400.

$$20\sqrt{10}+100+60\sqrt{5}+1.85\sqrt{1600+6400}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Adio 1600 a 6400 i gael 8000.

$$20\sqrt{10}+100+60\sqrt{5}+1.85\sqrt{8000}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Ffactora 8000=40^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{40^{2}\times 5} fel lluoswm ail israddau \sqrt{40^{2}}\sqrt{5}. Cymryd isradd 40^{2}.

$$20\sqrt{10}+100+60\sqrt{5}+1.85\times 40\sqrt{5}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Lluosi 1.85 a 40 i gael 74.

$$20\sqrt{10}+100+60\sqrt{5}+74\sqrt{5}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfuno 60\sqrt{5} a 74\sqrt{5} i gael 134\sqrt{5}.

$$20\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{20^{2}+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 20 i bŵer 2 a chael 400.

$$20\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{400+60^{2}}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 60 i bŵer 2 a chael 3600.

$$20\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{400+3600}+1.85\sqrt{40^{2}+100^{2}}$$

Adio 400 a 3600 i gael 4000.

$$20\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{4000}+1.85\sqrt{40^{2}+100^{2}}$$

Ffactora 4000=20^{2}\times 10. Ailysgrifennu ail isradd y lluoswm \sqrt{20^{2}\times 10} fel lluoswm ail israddau \sqrt{20^{2}}\sqrt{10}. Cymryd isradd 20^{2}.

$$20\sqrt{10}+100+134\sqrt{5}+1.85\times 20\sqrt{10}+1.85\sqrt{40^{2}+100^{2}}$$

Lluosi 1.85 a 20 i gael 37.

$$20\sqrt{10}+100+134\sqrt{5}+37\sqrt{10}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfuno 20\sqrt{10} a 37\sqrt{10} i gael 57\sqrt{10}.

$$57\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{40^{2}+100^{2}}$$

Cyfrifo 40 i bŵer 2 a chael 1600.

$$57\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{1600+100^{2}}$$

Cyfrifo 100 i bŵer 2 a chael 10000.

$$57\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{1600+10000}$$

Adio 1600 a 10000 i gael 11600.

$$57\sqrt{10}+100+134\sqrt{5}+1.85\sqrt{11600}$$

Ffactora 11600=20^{2}\times 29. Ailysgrifennu ail isradd y lluoswm \sqrt{20^{2}\times 29} fel lluoswm ail israddau \sqrt{20^{2}}\sqrt{29}. Cymryd isradd 20^{2}.

$$57\sqrt{10}+100+134\sqrt{5}+1.85\times 20\sqrt{29}$$

Lluosi 1.85 a 20 i gael 37.

$$57\sqrt{10}+100+134\sqrt{5}+37\sqrt{29}$$

Ffactor

$$37 \sqrt{29} + 57 \sqrt{10} + 134 \sqrt{5} + 100 = 779.134033479$$