Is the triangle an acute, isosceles, obtuse, or right?

Step-by-step explanation:

k =70 because all triangles angles add up to 180° and it's an acute angle cause all the angles are lower than 90° hope this helps

If andrea sees that a 40-foot tree casts a 10-foot shadow then, the problem   used for that was 40 divided by 10, which was 4. now we do a reverse problem since we know the shadow casted was 15inches, we multiply 4. 15 multiplied by 4 is 90.the answer is 90 inches.