maxine06 maxine06

17-06-2022
Mathematics

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Find the value of the pronumeral ‘a’ correct to 1 decimal place.

Find the value of the pronumeral a correct to 1 decimal place class=

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xenia168 xenia168

17-06-2022

Answer:

Step-by-step explanation:

a = BC - DC

[tex]\frac{60}{BC}[/tex] = tan 28°

BC = [tex]\frac{60}{tan28}[/tex] ≈ 112.8 m

DC = [tex]\frac{60}{tan54}[/tex] ≈ 43.6 m

a ≈ 112.8 - 43.6 = 69.2 m

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