Answer:
2nd option
Step-by-step explanation:
Yard = 0.914 meter
3 meters - 3 yards
3m - 3 ( 0.914 m)
3m - 2.742m
= 0.258 m
so approximately the answe is A
See below for the proof that the areas of the lune and the isosceles triangle are equal
<h3>How to prove the areas?</h3>
The area of the isosceles triangle is:
Where r represents the radius.
From the figure, we have:
So, the equation becomes
Evaluate
Next, we calculate the length (L) of the chord as follows:
Multiply both sides by r
Multiply by 2
This gives
The area of the semicircle is then calculated as:
This gives
Evaluate the square
Divide
Next, calculate the area of the chord using
Recall that:
Convert to radians
So, we have:
This gives
The area of the lune is then calculated as:
This gives
Expand
Evaluate the difference
Recall that the area of the isosceles triangle is
By comparison, we have:
This means that the areas of the lune and the isosceles triangle are equal
Read more about areas at:
brainly.com/question/27683633
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Step-by-step explanation:
cos50 = x/53
0.64 = x/53
x = 0.64×53
= 33.92