The surface area of the teepee is 399.12 square feet
Answer:
54
Step-by-step explanation:
Answer:
ex.: 71 (see explanation)
Step-by-step explanation:
The answers on this could vary. An acute angle is an angle less than 90 degrees. However, you also have to remember that a triangle adds up to 180 degrees, so the angle cannot be so small that the third angle would be over 90. For my answer, I subtracted 38 from 180 (the whole triangle) and then divided by 2.
I hope this helps.
Answer:
d. 15, 30, 135
Step-by-step explanation:
A triangle's interior angles on a flat surface add up to 180 degrees.
a. 90 * 3 = 270 != 180
b.(80 * 2) + 200 = 360 != 180
c.40 + 50 + 60 = 160 != 180
d.15 + 30 + 135 = 45 + 135 = 180, so it has to be d.
Point a is (2, 1 1/2) point b is (-2, 1 1/2) and point c is (-1 1/2, 1/4)
