Question

Help me, this is math and I need to this this extension.

Answer 1

• from pythogras theorem:

`{ \rm{ {c}^(2) = {a}^(2) + {b}^(2) }} \\`

a → 5 km

c → 8 km

`{ \tt{ {8}^(2) = {5}^(2) + {b}^(2) }} \\ \\ { \tt{ {b}^(2) = {8}^(2) - {5}^(2) }} \\ \\ { \tt{ {b}^(2) = 39}} \\ \\ { \tt{ \: b = √(39) = 6.2 \: km }}`

Answer 2

Applying pythagorean theorem:-

`\\ \sf\longmapsto 8^2-5^2=b^2`

`\\ \sf\longmapsto 64-25=b^2`

`\\ \sf\longmapsto b^2=39`

`\\ \sf\longmapsto b=√(39)`

`\\ \sf\longmapsto b=6.24`