(mod 4) pract prove rt triangle
Given 3 sides of a triangle.
Is it a right triangle?
9
Draw triangle-->place sides-->statement
leg
3
leg
5,  3,  4
16
4
5
hyp
25
equal
9
yes it is a right triangle
a2 + b2 = c2
+
25 = 25
16
=
25
Which are right triangles?
12,  9,  15
6,  8,  9
5,  6 ,  7
Which are right triangles?
8,  20,  10
15,  8,  17
10,  12,  15
Which are right triangles?
9,  12,  15
2, 3, 4
5,  13,  10
Which side of a right triangle is longest?
leg b
leg a
hypotenuse
fill in the squares
12
5
13
is it a right triangle?
no
yes
fill in the squares
9
10
15
is it a right triangle?
yes
no
Which is a right triangle?
4--5---6
26--10--24
9--10--12
Which is a right triangle?
6--8--11
9--12--13
34--30--16
225
169
Find each side length
Is it a right triangle?
yes
no
196
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