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3 years ago

A circular plate has circumference 28.3 inches. What is the area of this plate? Use 3.14 for pi.

Mathematics

2 answers:

LenKa [72]3 years ago

5 0

Answer: Area = 63.9 inches²

Step-by-step explanation:

The formula for determining the circumference of a circle is expressed as

Circumference = 2πr

Where

r represents the radius of the circle

π is a constant whose value is 3.14

From the information given,

circumference = 28.3 inches

Therefore,

28.3 = 2 × 3.14 × r

28.3 = 6.28r

r = 28.3/6.28

r = 4.51 inches

The formula for determining the area of a circle is expressed as

Area = πr²

Area = 3.14 × 4.51² = 63.9 inches²

natima [27]3 years ago

4 0

Answer:

A =63.76512739 in^2

Step-by-step explanation:

The circumference is given by

C = 2 * pi * r

28.3 = 2* 3.14 *r

28.3 = 6.28r

Divide each side by 6.28

28.3/6.28 = 6.28r/ 6.28

4.506369427 =r

Now we need to find the area

A = pi r^2

A = 3.14 (4.506369427)^2

A =63.76512739 in^2

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Simplify: (8t4 + 6 )+(914 – 2ť + 6t? – 6 )

vekshin1

Answer:t

2⋅(17t 2 −2t+6)

Step-by-step explanation:

v(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

(8•(t4))+6)+((((9•(t4))-(2•(t3)))+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+((((9•(t4))-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

((8•(t4))+6)+(((32t4-2t3)+(2•3t2))-6)

STEP

Equation at the end of step

(23t4 + 6) + (9t4 - 2t3 + 6t2 - 6)

STEP

Pulling out like terms

6.1 Pull out like factors :

17t4 - 2t3 + 6t2 = t2 • (17t2 - 2t + 6)

5 0

3 years ago

A circular plate has circumference 28.3 inches. What is the area of this​ plate? Use 3.14 for pi.

A circular plate has circumference 28.3 inches. What is the area of this plate? Use 3.14 for pi.