singlegirlforlife541
18.10.2020 •
Mathematics
NEED THIS NOW/URGENT
i dont know how to simplify with fractions please need this right now!
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Ответ:
Option B 161.7 cm²
Step-by-step explanation:
In a right angle triangle measure of one angle is given as 23°
Adjacent side or base is given as 27.6 cm.
Hypotenuse length = 30 cm.
We have to find the area of the triangle
Since area of a triangle =
(Base) (height)
tan 23° =
= 
0.42447 =
h = 27.6 × 0.42447 = 11.716 cm
Now area of the triangle =
(27.6) (11.716)
= 161.67 cm² ≈ 161.7 cm²