90 km/ h x 1.5 h = 135 km
The unlabeled part of the right angle is complementary to 68 degrees, so 22 degrees. y is supplementary to 78 degrees, so 102 degrees. z as the third angle in the small triangle is 180 less than the sum of the other two,
z = 180 - 22 - 102
Answer: 56 degrees
The shaded area is 299.59un^2.
she will need 18 boxes total :)
