Answer:
7m +3
Step-by-step explanation:
To find the perimeter of a triangle, we add up all the sides
m + 3m + 3m+3
Combine like terms
7m +3
Answer:
.9
Step-by-step explanation:
Answer:
54.5°
Step-by-step explanation:
You know that in a right triangle, the sine of an angle is given by ...
Sin = Opposite/Hypotenuse
sin(D) = EF/ED = 57/70
The inverse sine function is used to find the angle:
∠D = arcsin(57/70)
∠D ≈ 54.5°
Answer:
-14.2
Step-by-step explanation: