gilliganjoey96 gilliganjoey96

09-04-2020
Mathematics

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Find the missing side length. Round to the nearest tenth.
15 cm
9 cm

Find the missing side length Round to the nearest tenth15 cm9 cm class=

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sanskritimore2004 sanskritimore2004

09-04-2020

Using Pythagorean’s theorem
a^2 +b^2= c^2
We know
c=15
b=9
a=?
Sub that in the Pythagorean’s theorem
a^2+9^2 = 15^2
a^2 + 81 = 225
a^2= 225-81
a^2 = 144
a= square root of 144
a= 12

Therefore the answer is 12

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