Michael is building a birdhouse. what is the area of the entrance hole with a 1.5 inch diameter?

1.77 sq. inches, 1.77 in²

Step-by-step explanation:

The entrance hole for a birdhouse is usually a circle so we are going to use the formula for the area of a circle. Why you would need the area to cut out a hole? Who knows. But they asked for it so we need it.

The area of a circle is calculated by taking the value of pi and multiplying it by the radius squared. The radius is 1/2 of the diameter.

So for Michael's birdhouse the diameter of the hole is 1.5 inches. That means its radius is 0.75 inches. Plug this into the formula:

area = π(0.75)²

Now solve (preferably using a calculator unless you just know pi off the top of the dome like that.

area = 1.767 square inches, call it 1.77 square inches.

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil