Estimate 495 + 254 what the answer
2 answers:
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Answer:
175.84 m
Step-by-step explanation:
Given that:
A circular garden which has a radius of 28 m.
= 3.14
To find:
The fencing required to enclose the circular garden ?
Solution:
Here, we are given a circle and its radius.
We are required to find the perimeter of the circle in order to find the fencing required to enclose the circular garden..
Formula for finding the perimeter of a circle is:
Perimeter =
where is the radius of the circle.
Using the given values in the formula:
Perimeter = = <em>175.84 m</em>
Therefore, 175.84 m of fencing is required.
Answer:
sec Θ =
Step-by-step explanation:
Using the trigonometric identity
sec²Θ = tan²Θ + 1
Since 270° < Θ < 360° ← that is fourth quadrant, then
sec Θ > 0, thus
sec²Θ = (- )² + 1 =
+ 1 =
, then
sec Θ = =