Question

Plz help me in this

Answer 1

7.x=
`\sqrt{12^(2)- 11^(2) }`

x=
`√(23)` in

8.x=
`\sqrt{11^(2) -8^(2) }`

x=
`√(57)` yd

9.x=
`\sqrt{2^(2) +2^(2) }`

x=
`√(8)` m

10.x=
`\sqrt{9^(2) +6^(2) }`

x=
`√(117)` m

11.x=
`\sqrt{170-4^(2) }`

x=
`√(154)` mi

12.x=
`\sqrt{37+7^(2) }`

x=
`√(86)` yd