Respuesta :

Answer:

See explanation

Step-by-step explanation:

1st photo:

(a) MKL ~ MLJ ~ LKJ

basically, you have to match the corners to each other (i dont have a better way of explaining this sorry)

(b) KL/KJ = KM/LK   AND    LJ/MJ = KJ/JL

match sides to each other

2nd photo:

(a) d = 7[tex]\sqrt{2}[/tex]

you have to use special right triangle rules for a 45-45-90 triangle

(b) a = [tex]\frac{4\sqrt{3} }{3}[/tex]

you have to use special right triangle rules for a 30-60-90 triangle

3rd photo:

x = 38.9°

[tex]cos^{-1}[/tex](7/9) = 38.9°

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