geometry help please

Mathematics
Tutor: None Selected Time limit: 1 Day

Feb 10th, 2015

For #3, just think of the shape as being 4 triangles, then apply the pythagorean theorem on them:

Sides VS and ST: 

9^2+ 8^2= c^2

81+ 64= c^2

145= c^2

c= sqrt(145)


Sides VU and UT:
9^2+ 7^2= c^2
81+ 49= c^2
130= c^2
c= sqrt(130)
Feb 10th, 2015

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