Is there a triangle with angle measures of 30°, 70°, and 80°

Yes, there is a triangle with angle measures of 30°, 70°, and 80°.

No matter what the angle measures in a triangle are, they must add up to 180° for it to be a triangle. Even if it was 178°, 1°, and 1°, it would add up to 180° and make it a triangle.

Yes

Step-by-step explanation:

Interior angle of all triangles = 180°

30°+70°+80° = 180°

$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