Question 1152283

Sketch a figure and solve each right tringle ABC with right angle at C,  given that:
2. B= 64° and C= 19.2
<pre>It's NOT C = 19.2, but c = 19.2
&#8736A = 90 - 64 = 26<sup>o</sup>

Side a: sin &#8736A {{{matrix(1,4, "=", O/H, "=", a/19.2)}}} ====> Side a: sin 26<sup>o</sup> {{{matrix(1,4, "=", O/H, "=", a/19.2)}}} 
a = 19.2 * sin 26<sup>o</sup> ---- Cross-multiplying
{{{highlight_green(matrix(1,5, Side, a, "=", 8.417, units))}}}

Side b: sin &#8736B {{{matrix(1,4, "=", O/H, "=", b/19.2)}}} =====> Side b: sin 64<sup>o</sup> {{{matrix(1,4, "=", O/H, "=", b/19.2)}}} 
b = 19.2 * sin 64<sup>o</sup> ---- Cross-multiplying
{{{highlight_green(matrix(1,5, Side, b, "=", 17.257, units))}}}