Answer:
42
Step-by-step explanation:
Hey There!
Angle 3 and Angle 4 are a pair of supplementary angles meaning that added together they will equal 180
So if angle 4 is given to find angle 3 all we have to do is subtract the angle that is given from 180
180-138=42
Therefore angle 3 = 42
Answer:
The other two sides are both 11 ft long
Step-by-step explanation:
you would add 5 plus 6 which gives you 11
then, subract 33 from 11 which gives you 22
then divied 22 by two which will tell you that both sides of the triangle are 11 ft long.
Answer:
The length is APPROXIMATELY equal to 12.4.
Step-by-step explanation:
Use the converse of the Pythagorean Theorem (
+
=
[where "c" is both the longest side and the hypotenuse]) since a rectangle's diagonals will always cut it into two right triangles:


169-16=153.
≈ 12
or

or if the problem has to be exact (using radicals)
3*
I hope this helps ;)
Answer:
70
Step-by-step explanation:
Answer:
9 cm
Step-by-step explanation:
27 / 3 =9 cm
The total periméter is 27 and it has 3 sides so just divide