Anna is having a party she need 15 invitations the invitation come in packages of 7 how many packages of invitation does Anna ne
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.
Answer:
Step-by-step explanation:
The area of a circle is given by
For circle B, the radius is 3 cm, it has an area of
Circle D also has a radius of 1 cm. Its area is
Circle P also has a radius of 1 cm and area
The area of the shaded region is then