Answer:
listen when in doubt go with choice 3.
Step-by-step explanation:
Tu tá no brainly americano, irmão.

Answer:
77
Step-by-step explanation:
Let's let the unknown number be x.
Supplementary angles add up to a total of 180 degrees. Since we already know one angle is 103, this means that:

Subtract 103 from both sides:

So, the measure of its supplementary angle is 77 degrees.
And we are done!
Answer:
56 sq cm
Step-by-step explanation:
SA = Area of Base + 1/2·(Perimeter of Base)·(Slant height)
= 4² + 1/2(4x4)(5)
= 16 + 1/2(16)(5)
= 16 + 40
= 56