Answer:
x = 18
Step-by-step explanation:
We need to find the value of x.
We know that the sum of angles of a triangle is equal to 180°. So, using this property,
2x+1+3x-1+90 = 180
2x+3x = 180-90
5x = 90
x = 18
So, the value of x is equal to 18.
Answer:
Step-by-step explanation:
r = 12 cm
Theta = 62
Length of arc = 

= 12.98 cm
Answer:
0,55
Step-by-step explanation:
4n+15=70+n
I'm pretty sure this is the answer
Have a good day!
the SAS similarity theorem