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IRISSAK [1]
3 years ago
13

NEED ANSWER ASAP MARKING BRAINLIEST

Mathematics
2 answers:
Gwar [14]3 years ago
8 0

Answer:

The length of AB is 10π units .

Step-by-step explanation:

Firstly, you have to convert degrees into radian by using the formula :

rad =  \frac{θ}{180}   \times \pi

Let θ = 150°

\frac{150}{180}  \times \pi

=  \frac{5}{6} \pi

Next, you have to use the length of arc formula for radian where s is the length and r is the radius :

s = rθ

Let r = 12 units,

Let θ = (5/6)π rad,

s = 12 \times  \frac{5}{6} \pi

s = 10\pi  \: units

natta225 [31]3 years ago
7 0

Answer:

AB = 10π

Step-by-step explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

      = 2πr × \frac{150}{360}

      = 2π × 12 × \frac{5}{12} ← cancel 12 on numerator/ denominator, leaving

AB = 2π × 5 = 10π

     

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