Wednesday

January 28, 2015

January 28, 2015

Posted by **Dominique** on Tuesday, December 18, 2012 at 9:07pm.

Please explain...

- Math -
**Reiny**, Tuesday, December 18, 2012 at 9:42pmIf you put P and Q on the same grid, did you notice that OQ is an extension of OP ?

so the angle formed by OP and OQ are the same

notice the hypotenuse of the smaller triangle is 5 by Pythagoras, and of the larger triangle it is 15

try this on your calculator:

2nd

cos

(

-3÷5

)

= to get 126.8698...°

now try:

2nd

cos

(

-9÷15

)

=

to get exactly the same angle of 126.8698...°

**Answer this Question**

**Related Questions**

Math - The point P(k,24) is 25 units from the origin. If P is on the terminal ...

Advanced Functions - x and y represent two angles in standard position. x has ...

math - trigonometric functions/ radians the angle Ə is in the first ...

math - There is a square whose vertices lie on a unit circle. Point P lies on ...

math:) - If the given point is on the terminal arm of an angle A in standard ...

trig - (a) sketch an angle A in standard position whose terminal ray passses ...

Math - The point (-8,3) lies on the terminal arm of angle theta in standard ...

math - The point (5,-6) is on the terminal arm of the standard position angle&#...

Calculus - The point A(-3, -5) is one the terminal arm of an angle feta. ...

Grade 11 math - If the given point is on the terminal arm of an angle A in ...