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Need help quick Picture provided

Need help quick Picture provided-example-1
User Lmnbeyond
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1 Answer

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C^2=a^2+b^2
C^2=20^2+15^2
C^2=400+225
C^2=X+10
(X+10)^2=625
X+10= √625
X+10=25
X=25-10
X=15

C^2=a^2+b^2
C^2=15
15^2=a^2+b^2
225=9^2+b^2
b^2=225-81
b^2=144
b= √144
b=12
b=y
y=12
User Arfa
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