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Here is a cuboid.
H Н.
G
31.5 cm
E
F
с
36 cm
А
27 cm
B
Calculate the size of angle CAG.

Here is a cuboid H Н G 315 cm E F с 36 cm А 27 cm B Calculate the size of angle CAG class=

Respuesta :

Answer:

m(∠CAG) = 35°

Step-by-step explanation:

From the figure attached,

Apply Pythagoras theorem in ΔCAG,

Length of AC = [tex]\sqrt{(27)^2+(36)^2}[/tex]

                      = [tex]\sqrt{729+1296}[/tex]

                      = [tex]\sqrt{2025}[/tex]

                      = 45

Now find the tangent of the given angle CAG,

tan(∠CAG) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

                  = [tex]\frac{CG}{AC}[/tex]

m(∠CAG) = [tex]\text{tan}^{-1}(\frac{31.5}{45} )[/tex]

                = [tex]\text{tan}^{-1}(0.7)[/tex]

                = 34.992°

                 ≈ 35°

Ver imagen eudora