Lesson 4.7. Finding Unknown Angle Measures
Instruction Active
Finding Angle Measures in Triangles
D
A
35°
y
B
90°
Consider triangle ABC with exterior angle ZDAC. Find
the missing angle measures.
x=
y=

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.