In this triangle, which of the following is true?
2 answers:
Answer:
Option C. x = 55° and a = 11.47 is the correct option.
Step-by-step explanation:
As we know sum of all angles of a triangle = 180°
Therefore in the triangle given
35° + 90° + x = 180°
125° + x = 180°
x = 180° - 125° °°
x = 55°
Now we we find the sine of 35°
sin35° =
sin35°=
0.5736 =
a = 20×0.5736
a = 11.47 units
Therefore, option C. x = 55° and a = 11.47 is the correct option.
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We have been given a chord and tangent to a circle. We have been minor arc measure that is equal to .
Since we know that angle formed by a secant and tangent of circle is half of the measure of intercepted arc.
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Now we will plug given values in our formula,
Therefore, the measure of d is 121 degrees.
Answer:
72 mles
Step-by-step explanation:
For better understanding, I'll make use of an attachment.
From the attachment,
O represents the start point
--- Jack
-- Distance between them
Required
Find OA; Jack's distance
To do this, we make use of Pythagoras theorem
This gives:
Subtract 900 from both sides
Take square roots
<em>Hence, Jill drove 72 miles</em>