1. right
right

2. 3√ is
isn't

3. Both of these are actually
one theorem called The
Converse of the Pythagorean
Theorem.
acute
acute
obtuse
obtuse

4. 4.2 6
The other two aren't necessary, in my opinion.
<
less
acute

5. two lines 5
a right
perpendicular

6. right
acute
obtuse

7. a2 + b2 ? c2
? (2√10)2
? 40
41 > 40
ACUTE ∆
a2 + b2 ? c2
? (3√61)2
? 549
549 = 549
Right ∆

8. > 11.3
15.5 > 11.3
Yes, these segments
can form a triangle.
? 11.32 ?
<
Since c2 is greater than
a2 + b2 the ∆ is Obtuse
Since the sides of the triangle
satisfy the Pythagorean Theorem
it is a right ∆. Therefore, the 50in
and 120in side must be perpendicular
to each other.
a2 + b2 = c2
= 1302
= 16900
16900 = 16900