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Right triangle trigonometry: sine, cosine, and tangent — Homework
Label each triangle relative to the given angle before choosing sin, cos, tan, or an inverse trig function. Round answers to one decimal place.
- 1.Right triangle: acute angle theta = 28 degrees, hypotenuse = 15. Find the side opposite theta.
- 2.Right triangle: acute angle theta = 51 degrees, side opposite theta = 12. Find the hypotenuse.
- 3.Right triangle: side opposite theta = 6, side adjacent to theta = 8. Find theta.
- 4.Right triangle: adjacent = 9, hypotenuse = 14. Find theta using inverse cosine.
- 5.A right triangle has an acute angle of 45 degrees. Without a calculator, explain why sin(45) and cos(45) must be equal.
🌲 Homeschool of the FutureTenth Grade · Math · week 25 homework