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1 year ago

Find the area of the circle with a radius of 4 inches use 3.14 do not round your answer

Mathematics

1 answer:

Vladimir79 [104]1 year ago

3 0

The area of the circle with radius of 4 inches is 50.24 square inches.

The area of circle is the region occupied by the circle in a two-dimensional plane. The area of the circle formula is useful for measuring the space occupied by a circular field or a plot.

It is given in the question that the radius of the circle is 4 inches.

Also, the value of $\pi$ is given to be 3.14.

We know that, the formula for the area of a circle with radius r is $\pi \ {r}^{2}$

Here,

$\pi$ = 3.14

r = 4 inches

Hence,

Area of the circle is = 3.14 * 4 * 4 square inches = 50.24 square inches.

To learn more about circle, here:-

brainly.com/question/11833983

#SPJ4

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1. A test-tube has a diameter of 3cm. How many turns would a piece of thread of length

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2 years ago

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3 years ago

Find the area of this trapezoid. Include the correct unit in your answer.

NemiM [27]

Answer:

$\displaystyle A _{ \text{trapezoid}} = 70 {m}^{2}$

Step-by-step explanation:

we are given a trapezoid

we want to figure out the area

remember that,

$\displaystyle A _{ \text{trapezoid}} = \frac{a + b}{2} h$

where a and b represent the parallel lines and h represents the height

we get from the pic that a and b are 5 and 15 respectively and h is 7

so substitute:

$\displaystyle A _{ \text{trapezoid}} = \frac{5 + 15}{2} \times 7$

simplify addition:

$\displaystyle A _{ \text{trapezoid}} = \frac{20}{2} \times 7$

simplify division:

$\displaystyle A _{ \text{trapezoid}} = 10\times 7$

simplify multiplication:

$\displaystyle A _{ \text{trapezoid}} = 70$

since we multiply two same units we of course have to use square unit

hence,

$\displaystyle A _{ \text{trapezoid}} = 70 {m}^{2}$

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2 years ago