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Mathematics

2 answers:

Delicious77 [7]4 years ago

8 0

B. cdb ....angle cdb is adjacent to angle adb because they have a common side (line db)

WARRIOR [948]4 years ago

4 0

Answer:

CDA

will be the correct answer

this is because the two angles ADB and CDA have common side i.e. AD

and a common vertex D

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find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches

MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

$l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ \therefore \: 14\pi = \frac{ \theta}{360 \degree} \times 2\pi \: \times 18 \\ \\ \therefore \:\theta = \frac{14\pi \times \: 360 \degree }{2\pi \: \times 18} \\ \\ \therefore \:\theta = \frac{7 \times \: 360 \degree }{18} \\ \\ \therefore \:\theta = 7 \times \: 20 \degree \\ \\ \huge \red{ \boxed{\therefore \:\theta = 140 \degree}}$