Solve sqrt{20^2+60^2}+sqrt{20^2+40^2}+sqrt{{40}^{2}+{80}^{2}}+sqrt{{100}^{2}+{20}^{2}}+sqrt{{20}^{2}+{60}^{2}}+sqrt{{40}^2+{100}^2}+sqrt{{40}^2+{80}^2}

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

Evaluate

$$20\left(\sqrt{26}+\sqrt{29}+2\sqrt{10}+5\sqrt{5}\right)\approx 559.781590571$$

Solution Steps

Calculate 20 to the power of 2 and get 400.

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

Calculate 60 to the power of 2 and get 3600.

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

Add 400 and 3600 to get 4000.

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

Factor 4000=20^{2}\times 10. Rewrite the square root of the product \sqrt{20^{2}\times 10} as the product of square roots \sqrt{20^{2}}\sqrt{10}. Take the square root of 20^{2}.

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

Calculate 20 to the power of 2 and get 400.

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

Calculate 40 to the power of 2 and get 1600.

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

Add 400 and 1600 to get 2000.

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

Factor 2000=20^{2}\times 5. Rewrite the square root of the product \sqrt{20^{2}\times 5} as the product of square roots \sqrt{20^{2}}\sqrt{5}. Take the square root of 20^{2}.

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

Calculate 40 to the power of 2 and get 1600.

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

Calculate 80 to the power of 2 and get 6400.

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

Add 1600 and 6400 to get 8000.

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

Factor 8000=40^{2}\times 5. Rewrite the square root of the product \sqrt{40^{2}\times 5} as the product of square roots \sqrt{40^{2}}\sqrt{5}. Take the square root of 40^{2}.

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

Combine 20\sqrt{5} and 40\sqrt{5} to get 60\sqrt{5}.

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

Calculate 100 to the power of 2 and get 10000.

$$20\sqrt{10}+60\sqrt{5}+\sqrt{10000+20^{2}}+\sqrt{20^{2}+60^{2}}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Calculate 20 to the power of 2 and get 400.

$$20\sqrt{10}+60\sqrt{5}+\sqrt{10000+400}+\sqrt{20^{2}+60^{2}}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Add 10000 and 400 to get 10400.

$$20\sqrt{10}+60\sqrt{5}+\sqrt{10400}+\sqrt{20^{2}+60^{2}}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Factor 10400=20^{2}\times 26. Rewrite the square root of the product \sqrt{20^{2}\times 26} as the product of square roots \sqrt{20^{2}}\sqrt{26}. Take the square root of 20^{2}.

$$20\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{20^{2}+60^{2}}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Calculate 20 to the power of 2 and get 400.

$$20\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{400+60^{2}}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Calculate 60 to the power of 2 and get 3600.

$$20\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{400+3600}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Add 400 and 3600 to get 4000.

$$20\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{4000}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Factor 4000=20^{2}\times 10. Rewrite the square root of the product \sqrt{20^{2}\times 10} as the product of square roots \sqrt{20^{2}}\sqrt{10}. Take the square root of 20^{2}.

$$20\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{10}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Combine 20\sqrt{10} and 20\sqrt{10} to get 40\sqrt{10}.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{40^{2}+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Calculate 40 to the power of 2 and get 1600.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{1600+100^{2}}+\sqrt{40^{2}+80^{2}}$$

Calculate 100 to the power of 2 and get 10000.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{1600+10000}+\sqrt{40^{2}+80^{2}}$$

Add 1600 and 10000 to get 11600.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+\sqrt{11600}+\sqrt{40^{2}+80^{2}}$$

Factor 11600=20^{2}\times 29. Rewrite the square root of the product \sqrt{20^{2}\times 29} as the product of square roots \sqrt{20^{2}}\sqrt{29}. Take the square root of 20^{2}.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{29}+\sqrt{40^{2}+80^{2}}$$

Calculate 40 to the power of 2 and get 1600.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{29}+\sqrt{1600+80^{2}}$$

Calculate 80 to the power of 2 and get 6400.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{29}+\sqrt{1600+6400}$$

Add 1600 and 6400 to get 8000.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{29}+\sqrt{8000}$$

Factor 8000=40^{2}\times 5. Rewrite the square root of the product \sqrt{40^{2}\times 5} as the product of square roots \sqrt{40^{2}}\sqrt{5}. Take the square root of 40^{2}.

$$40\sqrt{10}+60\sqrt{5}+20\sqrt{26}+20\sqrt{29}+40\sqrt{5}$$

Combine 60\sqrt{5} and 40\sqrt{5} to get 100\sqrt{5}.

$$40\sqrt{10}+100\sqrt{5}+20\sqrt{26}+20\sqrt{29}$$

Factor

$$20 {(\sqrt{26} + \sqrt{29} + 2 \sqrt{10} + 5 \sqrt{5})} = 559.781590571$$