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Komok [63]
3 years ago
12

Work out the circumference of a circle with diameter 1.8 cm.

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0

Answer:

The answer is

<h2>5.6 cm</h2>

Step-by-step explanation:

Circumference of a circle( C) = πd

where d is the diameter

π = 3.142

From the question

d = 1.8cm

Substitute d = 1.8 into the above formula

Circumference of the circle is

3.142 × 1.8

= 5.6556

We have the final answer as

<h3>C = 5.6 cm to one decimal place</h3>

Hope this helps you

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Jewel's score was 5 over par on the first 9 holes. Her score 4 under par on the second 9 holes. What was her total score? If par
lys-0071 [83]

Answer:

52

Step-by-step explanation:

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3 years ago
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Triangle ABC is described below. Find all possible values for B, C, and c.
aliya0001 [1]

Answer:

c = 27.9

B = 62.13°

C = 89.90°

Step-by-step explanation:

We are given the following values:

A= 121.59°, a = 27.9 cm, b = 52.6 cm

a) Finding side c

We would use Pythagoras Theorem

c² = a² + b²

c = √(a² + b²)

c = √(27.9² + 52.6²)

c = 59.54cm

≈ Approximately = 59.5cm

b) Finding B

We would be using Cosine rule to find Angle B

Cos B = a² + b² - c²/2ab

B = arc cos ( a² + c² - b²/2ac)

B = arc cos( 27.9² + 59.5² - 52.6²/ 2 × 27.9 × 59.5)

B = 62.13268°

B = 62.13°

c) Finding C

We would be using Cosine rule to find Angle C

Cos C = a² + b² - c²/2ab

C = arc cos ( a² + b² - c²/2ab)

C = arc cos( 27.9² + 52.6² - 59.5²/ 2 × 27.9 × 52.6)

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Answer:

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\frac{x^4+5}{x^5+6x^3}

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