- 6-3.1: For 14, find the area of the indicated triangle. ABC, if side a = 5...
- 6-3.2: For 14, find the area of the indicated triangle. ABC, if side b = 8...
- 6-3.3: For 14, find the area of the indicated triangle. RST, if side r = 4...
- 6-3.4: For 14, find the area of the indicated triangle. XYZ, if side x = 3...
- 6-3.5: For 57, use Heros formula to calculate the area of the triangle. AB...
- 6-3.6: For 57, use Heros formula to calculate the area of the triangle. XY...
- 6-3.7: For 57, use Heros formula to calculate the area of the triangle. DE...
- 6-3.8: Comparison of Methods Problem: Reconsider a. For ABC in 1, calculat...
- 6-3.9: Heros Formula and Impossible Triangles Problem: Suppose someone tel...
- 6-3.10: Lot Area Problem: Sean works for a real estate company. The company...
- 6-3.11: Variable Triangle Problem: Figure 6-3f show s angle in standard pos...
- 6-3.12: Unknown Angle Problem: Suppose you need to construct a triangle wit...
- 6-3.13: Derivation of the Area Formula Problem: Figure 6-3g shows XYZ with ...
Solutions for Chapter 6-3: Area of a Triangle
Full solutions for Precalculus with Trigonometry: Concepts and Applications | 1st Edition
See Inverse cotangent function.
The probability of an event A given that an event B has already occurred
See Polar coordinates.
Equal complex numbers
Complex numbers whose real parts are equal and whose imaginary parts are equal.
A relation that associates each value in the domain with exactly one value in the range.
Notation used to specify intervals, pp. 4, 5.
Irreducible quadratic over the reals
A quadratic polynomial with real coefficients that cannot be factored using real coefficients.
Line of symmetry
A line over which a graph is the mirror image of itself
Magnitude of a real number
See Absolute value of a real number
Any of the real numbers in a matrix
The perpendicular bisector of the major axis of an ellipse with endpoints on the ellipse.
A set is ordered if it is possible to compare any two elements and say that one element is “less than” or “greater than” the other.
Position vector of the point (a, b)
The vector <a,b>.
Rectangular coordinate system
See Cartesian coordinate system.
Reflection through the origin
x, y and (-x,-y) are reflections of each other through the origin.
A sum where the interval is divided into n subintervals of equal length and is in the ith subinterval.
The distance from the center to a vertex of an ellipse.
Spiral of Archimedes
The graph of the polar curve.
Sum of an infinite geometric series
Sn = a 1 - r , |r| 6 1