(20 points) answer both.
7: classify the triangle by its angles.
a: acute
b: right
c: obtuse
d: scalene

8: find the missing angle measure.
a: 35°
b: 40°
c: 45°
d: 50°

7. B - Right

8.  A - 35

Step-by-step explanation:

7. There is a right angle in the triangle, meaning its a right triangle.

8. 180 - 105 - 40 = 35

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.