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Sveta_85 [38]
3 years ago
8

PLEASE HELP ME FIND THE LENGTH

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
7 0

Answer:

Length of arc AB is,

= 2πr (angle between AB) /360

=2×3.14×90/360

=1.57 cm

victus00 [196]3 years ago
5 0

For this case we have that by definition, the arc length of a circle is given by:

AL = \frac {x * 2 \pi * r} {360}

Where:

x: Represents the angle between AB. According to the figure we have that x = 90 degrees.

r = 7.9 \ cm

So:

AL = \frac {90 * 2 \pi * 7.9} {360}\\AL = \frac {90 * 2 * 3.14 * 7.9} {360}\\AL = \frac {4465,08} {360}\\AL = 12.403

Answer:

12.4\ cm

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