The flag of a country contains an isosceles triangle. (Recall that an isosceles triangle contains two angles with the same measu
re.) If the
measure of the third angle of the triangle is 15º more than three times the measure of either of the other two angles, find the measure of each
angle of the triangle. (Recall that the sum of the measures of the angles of a triangle is 180°.)
measure of the third angle of the triangle is 15º more than three times the measure of either of the other two angles, find the measure of each
angle of the triangle. (Recall that the sum of the measures of the angles of a triangle is 180°.)
1 answer:
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Answer:
The length of rope is 20.0 ft . Hence, <u>option (1) </u> is correct.
Step-by-step explanation:
In the figure below AB represents pole having height 10 ft and AC represents the rope that is from the top of pole to the ground. BC represent the ground distance from base of tower to the rope.
The rope and the ground form a 30 degree angle that is the angle between BC and AC is 30°.
In right angled triangle ABC with right angle at B.
Since we have to find the length of rope that is the value of side AC.
Using trigonometric ratios
Putting values,
We know,
On solving we get,
AC= 20.0 ft
Thus, the length of rope is 20.0 ft
Hence, <u>option (1)</u> is correct.
