work out length of side b
give your answer to 1 decimal place
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![work out length of side bgive your answer to 1 decimal placeplzzzz hhheellpp class=](https://us-static.z-dn.net/files/dba/ba6b86a837ceca226d54aab38b5d13e4.jpg)
➷ Use Pythagoras' theorem:
b^2 = c^2 - a^2
Substitute in the values:
b^2 = 17^2 - 12^2
b^2 = 289 - 144
b^2 = 145
Square root it:
b = 12.04159458
The answer is 12.0
➶ Hope This Helps You!
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