Examine the diagram, what is the measure of angle 1?

71

Step-by-step explanation:

We can find the value of x

63 + 15x -3 = 180 since they from a straight line

Combine like terms

60 +15x = 180

Subtract 60 from each side

60-60+15x = 180-60

15x =120

Divide each side by 15

15x/15 = 120/15

x =8

We know that <1 = 8x+7  since they are vertical angles

                            = 8(8) +7

                            =71

the answer is 71

Step-by-step explanation:

hope it's helpful

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.