Answer:
i believe its an acute angle
the answer in the parentheses (bottom) is =
Step-by-step explanation:The result can be shown in multiple forms.
Exact Form:
x
=
7
4
Decimal Form:
x
=
1.75
Mixed Number Form:
x
=
1
3
4
Drawing a picture definitely helps! since BD is 6", it is split evenly into 3 and 3. AC is the same except it splits into 4 and 4. because AC and BD are perpendicular to each other, the crossing lines form a 90 degree angle. in this case, the missing side is 5 because the sections form a pythagorean triple (3, 4, 5). you could do the pythagorean theorem (a^2 + b^2= c^2) but having some pythagorean triples memorized will help a lot. i hope this helped!