trig

posted by .

Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x

  • trig -

    sin 30 = opposite / hypotenuse = 1/2
    4/x = 1/2
    x = 8

    by the way:
    If it is a right triangle one angle is 90 degrees
    the sum of angles is 180
    so
    90 + 30 + last angle = 180
    the last angle is 60

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. inverse trig functions

    evaluate the following expressions: tan(sec^-1(5/3)) tan(sec^-1(25/7)) cot(csc^-1(5/3)) i know the answers.. i jus don't know how to solve them =( PLEASE help me I assume your sec^-1 notation denot4es the arcsecant function, etc. sec^-1 …
  2. Angle question

    Quadrilateral JKLM is a rhombus. If mangleLMK = 36, find mangleKJM In the right triangle ABC, mangleB = 90, AB = 5, and AC= 12. Find BC. Round to the nearest tenth, if necessary. Help?
  3. Pre-Calc

    Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse. The measure of side a= 2, side b= 7, and side c= 7.3 How do you find the angle measure of A and …
  4. Evaluation-repost

    Reposting because it has gone down to the second page! Evaluate 1. sin(tan inverse sqrt(x^2-2x)) 2. tan (sec inverse 3y) For 1. draw a right triangle and label the opposite leg sqrt(x^2-2x), the adjacent side 1 and the hypotenuse x-1. …
  5. Geometry

    The hypotenuse of a right triangle is the side opposite the?
  6. Trig

    If I have a triangle with the hypotenuse side as 7, and the opposite side as 3, how would I find the angle?
  7. trig

    Suppose the tangent of an acute angle in a right triangle is less than 1. How does the side opposite the angle compare to the side adjacent to the angle?
  8. trig

    use an inverse trig function to write è as a function of x (There is a right triangle. The hypotenuse is 2. è is the angle between the base and the hypotenuse. The base/adjacent side of è is (x + 1) The side opposite è does not …
  9. math please help

    use an inverse trig function to write theta as a function of x (There is a right triangle drawn. The hypotenuse is 2. Theta is the angle between the base and the hypotenuse. The base/adjacent side of theta is labeled(x + 1) The side …
  10. trig

    right triangle has an acute angle of 24.8 and an adjacent length of 145 what is the side opposite of the acute angle

More Similar Questions