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KatRina [158]
3 years ago
13

NEED ANSWER ASAP MARKING BRAINLIEST

Mathematics
1 answer:
kakasveta [241]3 years ago
6 0

Answer:

AB = 8π

Step-by-step explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

     = 2πr × \frac{144}{360}

     = 2π × 10 × \frac{2}{5} ← cancel the 5 and 10, leaving

AB = 2π × 2 × 2 = 8π

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I will give you 100 points HELp
Naddika [18.5K]

Answer:

CD ≈ 26.0 cm

Step-by-step explanation:

using the sine ratio in right triangle ABD

sin35° = \frac{opposite}{hypotenuse} = \frac{AB}{BD} = \frac{12}{BD} ( multiply both sides by BD )

BD × sin35° = 12 ( divide both sides by sin35° )

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using the sine rule in Δ BCD

\frac{BD}{sinC} = \frac{CD}{sinB} , that is

\frac{20.92}{sin52} = \frac{CD}{sin102} ( cross- multiply )

CD × sin52° = 20.92 × sin102° ( divide both sides by sin52° )

CD = \frac{20.92sin102}{sin52} ≈ 26.0 cm ( to 3 significant figures )

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Answer:

5

Step-by-step explanation:

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I = PRT
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