Step-by-step explanation:
AC²=AB²+BC²
=(7)²+(13)²
=49+169= 218
AC=√218
= 14.7ft
therefore the original height of the tree
=7+14.7
=21.7ft
S= 2.75+52 Help please
2 answers:
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Answer:
Step-by-step explanation:
a^2+b^2=c^2
3^2+1^2=c^2
9+1=c^2
c^2=10
c=