Questions: 1. what is the value of x? show your work to justify your answer. 2. what is the value of the exterior angle? show your work to justify your answer.

x = 72

Exterior angle = 154

Step-by-step explanation:

82 + x = 2x + 10

Subtract x from both sides

82 = x + 10

Subtract 10 from both sides

72 = x

Exterior Angle

2(72) + 10

154

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

2 x 503

step-by-step explanation:

its 1006