the answer is D (i think i'm sorry if i get u wrong)
Answer:
CD = 2 units
Step-by-step explanation:
in the given right triangle ΔCDE,
By applying tangent rule,
tan(∠E) = 
= 
tan(30)° = 

CD = 
CD = 2 units
Therefore, CD = 2 unit will be the answer.
Answer:
2
Step-by-step explanation:
12/8 is equal to 6/4.
6 divided by 3 is 2.
Answer:
a=(-7)
b=1
c=4
Step-by-step explanation:
0=(c)+(a)x²+(b)x
The total measure of interior angles of a triangle is 180°. with this in mind and if we already know to of the angles, then all we have to do is subtract the sum of the other two angles from 180°. so 60°+80°=140°. 180°-140°=40°. so the measure of the third angle is 40°. hope this helps!