Question

Questions Use the Law of Coisnes to find the remaining side(s) and angle(s) in radians if possible. Q1 [10/10] Q 2 [10/10] Q3 [10/10 C Q4 (0/10) Q5 [10/10] C96 (0/10) Q7 (0/10) CQ 8 (3.3/10) C Q 9 (0/10) Q10 (0/10) Q11 (0/10) 310 ,b= 303 ,c 536 a nts Preview 3= Preview Preview Get help: Video Grade: 43.3/110 Print Version Points possible: 10 Unlimited attempts. Submit

Answer 1

a=310 ; b=303 ; c=536

Cosine rule :-

$cos(\alpha) =\frac{b^2+c^2-a^2}{2bc}$

$cos(\alpha) =\frac{303^2+536^2-310^2}{2(303)(536)}$

$cos(\alpha )=0.8711$

$\alpha =0.513$

$cos(\beta) =\frac{310^2+536^2-303^2}{2(310)(536)}$

$\beta =0.5$

Sum of angles of triangle

$\alpha +\beta +\gamma =\pi$

$0.513 +0.5 +\gamma =\pi$

$\gamma =\pi-1.013$

$\gamma =2.128$