willoughbyrachael willoughbyrachael

17-11-2020
Mathematics

contestada

Find the length of the unknown side. Round your answer to the nearest tenth.

O 16.5
O 17.5
O 18.5
O 22.0

Find the length of the unknown side Round your answer to the nearest tenth O 165 O 175 O 185 O 220 class=

Respuesta :

hedgie131ea hedgie131ea

17-11-2020

17.5

Explanation:

So if we use the formula a^2+b^2=c^2

We would fill it in as 4^2+b^2=18^2
Then solve

16+b^2= 324

Then subtract 16 from both sides

B^2 = 308

Then you find the square root of 308

17.5

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