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3 years ago

The radius of a circle is 4 feet. What is the circle's area? Use 3.14 for .

Mathematics

2 answers:

Alenkinab [10]3 years ago

4 0

Answer:

25.12

Step-by-step explanation:

Serga [27]3 years ago

3 0

Answer:

Approximately 50 square feet (50.24 to be exact)

Step-by-step explanation:

If you're using 3.14 for π, and the area of a circle is A=πr2,

(3.14)(4)^2 =?

(3.14)(16) = 50.24

Therefore the answer would be about 50 square feet.

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Find the volume of a cylinder that has a radius of 11 m and a height of 9 m.

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Answer:

The volume would be 3,421.19m

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2 years ago

Use the given information to solve for x and y

Anuta_ua [19.1K]

Answer:

x = 10 and y = 7

Step-by-step explanation:

Equalateral triangle means all sides are equal.

x = 10, easy

make y + 3 = 10

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Easy, no real math needed. lol

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3 years ago

Using a scale where 3 inches = 5 feet. If a room measures 20 feet (Width) by 22.5 feet (length), what are the dimensions of the

irina [24]

Answer:

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Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

For questions 8 – 10, answer the questions about tangent-tangent angles.

olchik [2.2K]

Answer:

m(arc ZWY) = 305°

Step-by-step explanation:

8). Formula for the angle formed outside the circle by the intersection of two tangents or two secants is,

Angle formed by two tangents = $\frac{1}{2}(\text{Difference of intercepted arcs})$

= $\frac{1}{2}(220-140)$

= $\frac{1}{2}(80)$

= 40°

9). Following the same rule as above,

Angle formed between two tangents = $\frac{1}{2}(\text{Difference of intercepted arcs})$

125 = $\frac{1}{2}[m(\text{major arc})-m(\text{minor arc})]$

250 = $[m(\text{arc ZWY})-m(\text{arc ZY})]$

250 = m(arc ZWY) - 55

m(arc ZWY) = 305°

Therefore, measure of arc ZWY = 305° will be the answer.

10). m(arc BAC) = $\frac{1}{2}([m(\text{arc BDC})-m(\text{arc BC})])$

= $\frac{1}{2}(254-106)$

= $\frac{148}{2}$

= 74°

4 0

2 years ago

Two non-coplanar lines ? intersect

mario62 [17]

Never. If they are not on the same plane, then they cannot intersect because 2 lines and 1 point are always on a plane, in this case the original line, then a point in the middle to the point that creates the other line would be included, hence if they are non-coplaner then they cannot intersect.

5 0

3 years ago

The radius of a circle is 4 feet. What is the circle's area? Use 3.14 for ​.

The radius of a circle is 4 feet. What is the circle's area? Use 3.14 for .