In triangle $A B C$ , side $a = 7$ , side $b = 5$ , and angle $C = 6 0^{\circ}$ . Using the law of cosines, what is the exact length of side $c$ ?

Practise more Geometry, Vectors and Trigonometry.

Free questions with an explanation for every one, and full timed VWO / HAVO Centraal Examen (Netherlands) mock tests.

All Geometry, Vectors and Trigonometry questions Take a mock test

More Geometry, Vectors and Trigonometry questions

What is the dot product of the vectors $u = 2 \hat{i} - 3 \hat{j} + 4 \hat{k}$ and $v = 5 \hat{i} + \hat{j} - 2 \hat{k}$ ?
What is the angle between the positive x-axis and the line $y = 3 x + 4$ in degrees?
What is the cross product $a \times b$ of $a = 100$ and…
What are the center and radius of the sphere with Cartesian equation $x^{2} + y^{2} + z^{2} - 4 x + 6 y - 2 z - 11 = 0$ ?
What is the exact value of $sin (7 5^{\circ})$ derived from the sum-of-angles formula $sin (4 5^{\circ} + 3 0^{\circ})$ ?
What is the equation of the plane passing through the point $(1, 2, 3)$ with normal vector…

In triangle ABC, side… | VWO / HAVO Centraal Examen (Netherlands)