Answer:
a) 0
b) scalene and obtuse
Step-by-step explanation:
∠A = 20
∠B = 60
∠C = 180 - 20 - 60 = 100 (obtuse)
Since none of the angles are equal, no sides are equal either
So, it's a scalene triangle
Since one angle is obtuse, it's an obtuse triangle
R parallel to s
because <4 =<5 alternate
Answer:
5
Step-by-step explanation:
- 7 - (- 12) = - 7 + 12 = 12 - 7 = 5
