3 years ago

Find DC round to the nearest tenth

Mathematics

2 answers:

tankabanditka [31]3 years ago

7 0

Step-by-step explanation:

30.53

loooooooooooooooooooooool

Pie3 years ago

6 0

Answer:

we can use trigonometric ratios (cos, sin, tan) to solve this

$cos(54)=AD/20\\20cos(54)=AD\\AD=12\\$

Using the pythagorean theorum we see that BD is 16

now we can use tan to solve for DC

$tan(28)=16/DC\\DC=16/tan(28)\\DC=30\\30+12=42; AC=42$

Step-by-step explanation:

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