Find the unknown angle measure.
given 78 degrees
63 degrees
solve for x

39°

Step-by-step explanation:

If it gives you 2 angles and asks for x, you know it has 3 angles. So the shape is a triangle. All 3 angles in a triangle add up to 180°.

So add 78 and 63 which equals 141

And to find x, subtract 141 from 180 because 180 is the total.

So the answer is 39

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40