Question 8 Multiple Choice Worth 1 points) (05.01 MC)
If the sin 90° is 1, then the cos
O 90°:
O 0°;
V2
2
O 90°:
V3
2
O 0°: 1

cos 0=90 degrees

Step-by-step explanation:

If sin of 90 is 1 then cos 90 is 0. Since sin and cos are like complementary angles they angles add up to 90 degrees.

and since sin 90 equal 1 cos of 0 equal 1.

What if we switch angles

Well they are still equal

But this time sin of 0 is 0 and cos 90 is 0.

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.