This type of triangle is a right triangle which has two other acute angles which are equal to one another. This is because 45 is complementary to itself.
Answer:
Step-by-step explanation:
40% of an hr.....an hr is 60 minutes...so 40% of 60 minutes =
0.4(60) = 24 minutes
Answer:
Have You tried 150? :)
Step-by-step explanation:
To solve this we are going to use the unitary circle and the fact that

From our circle we can infer that

and

.
Since

,

We can conclude that 
.