Answer:
∠a = 10°
Step-by-step explanation:
The measure of ∠a = x
The measure of ∠b = 4x-30
It is also mentioned that the measure a and measure b are vertical angles. We need to find the value of a.
For vertically opposite angles,
∠a = ∠b
x = 4x-30
or
4x-30=x
Taking like terms together,
4x-x= 30
3x = 30
x = 10
So, the meausre of ∠a is equal to 10°.
1.) <1=25°, <2=155°, <4=155°
Answer:
Answers 3 and 5
Step-by-step explanation:
Answer:
y=22/45
Step-by-step explanation:
y=3/5-1/9
y=(27-5)/45
y=22/45
