abcde is a regular pentagon with wide lengths of 20 units.

1. draw segments at and bt.

2. how many triangles congruent to triangle atb could be drawn in the pentagon?

3. classify triangle atb as scalene, isosceles, or right.

4. what is the measure of angle atb?

5. what is the measure is angles tab and tba?

Step-by-step explanation:

1. Connect points E and T, then B and T.

2. 10 triangles would be congruent to ATB

3. The questions is bad. Right triangles are defined as angles, and the other two are side descriptions. The triangle being drawn would be a 30-60-90 triangle, which is a right scalene triangle.

4. 30 degrees.

5. 60 degrees.

$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