find the perimeter of the triangle to the right.\nthe perimeter is \n(type an integer or decimal rounded to…

find the perimeter of the triangle to the right.\nthe perimeter is \n(type an integer or decimal rounded to the nearest tenth as needed.)

find the perimeter of the triangle to the right.\nthe perimeter is \n(type an integer or decimal rounded to the nearest tenth as needed.)

Answer

Explanation:

Step1: Find the third - angle

The sum of angles in a triangle is $180^{\circ}$. Let the third angle be $x$. Then $x = 180-(48 + 68)=64^{\circ}$.

Step2: Use the Law of Sines

Let the sides opposite the angles $48^{\circ}$, $68^{\circ}$, and $64^{\circ}$ be $a$, $b = 23$, and $c$ respectively. By the Law of Sines, $\frac{a}{\sin48^{\circ}}=\frac{b}{\sin68^{\circ}}=\frac{c}{\sin64^{\circ}}$. First, find $a$: $a=\frac{b\sin48^{\circ}}{\sin68^{\circ}}=\frac{23\sin48^{\circ}}{\sin68^{\circ}}\approx\frac{23\times0.7431}{0.9272}\approx18.5$. Then find $c$: $c=\frac{b\sin64^{\circ}}{\sin68^{\circ}}=\frac{23\sin64^{\circ}}{\sin68^{\circ}}\approx\frac{23\times0.8988}{0.9272}\approx22.2$.

Step3: Calculate the perimeter

The perimeter $P=a + b + c$. Substitute $a\approx18.5$, $b = 23$, and $c\approx22.2$ into the formula. $P\approx18.5+23 + 22.2=63.7$.

Answer:

$63.7$