Q:

Help me solve,Brainlist for first to answer

Accepted Solution

A:
Answer:(i) the other two sides are 6 and  6[tex]\sqrt{2}[/tex](ii) the other two sides are   [tex]\frac{4}{3} and                                         \frac{8}{3}[/tex]Step-by-step explanation:(i)  Sine: sin(θ) = Opposite ÷ Hypotenuse     Cosine: cos(θ) = Adjacent  ÷ Hypotenuse     Tangent: tan(θ) = Opposite ÷ AdjacentHere adjacent side = 6opposite side = dangle = 45°other angles are 90° and 45°tan (45) = Opposite ÷ Adjacent  1 = d ÷ 6∴ d = 6 × 1 = 6so opposite side = 6Hypotenuse ² = opposite side ² + adjacent side²                       =  6² + 6²                       = 36 + 36                        = 72 hypotenuse = [tex]\sqrt{72}[/tex]                      = 6[tex]\sqrt{2}[/tex]the other two sides are 6 and  6[tex]\sqrt{2}[/tex](ii) here adjacent side = 4√3angle = 30°other angles are 90° and 60°opposite side = dtan ( 30) = opposite ÷ adjacent  [tex]\frac{1}{\sqrt{3}}[/tex] = d ÷ 4√3[tex]\frac{1}{\sqrt{3}}[/tex] = d × ([tex]\frac{\sqrt{3}}{4}[/tex])                        3 d = 4therefore d = [tex]\frac{4}{3}[/tex]therefore opposite side = [tex]\frac{4}{3}[/tex]Hypotenuse ² = opposite side ² + adjacent side²                         =( [tex]\frac{4}{3}[/tex])² +( [tex]\frac{4}{\sqrt{3}}[/tex])²                         = [tex]\frac{64}{9}[/tex]therefore hypotenuse = [tex]\sqrt{\frac{64}{9}}[/tex]                                      =[tex]\frac{8}{3}[/tex]the other two sides are   [tex]\frac{4}{3} and                                    \frac{8}{3}[/tex]