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Nana76 [90]
2 years ago
13

The diagram show a circle centre 0. write down the mathematical name of

Mathematics
1 answer:
Ksivusya [100]2 years ago
5 0

Answer:

(a) sector

(b) chord

(c) tangent

Step-by-step explanation:

<h3>sector: a sector in a circle is enclosed by two radii and an arc.</h3>

<h3>chord: this is a straight line that divides the circle into two unequal parts</h3>

<h3>tangent: a tangent touches a circle in only one point without entering inside the circle.</h3>

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The girl's speed is 1380mm/sec * 1cm/10mm * 60sec/minute (since 1cm=10mm and 60 sec=1 minute)= 1380*60cm/10min= 1380*6cm/min
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Since the girl is 8280 cm/min and the turtle is 2640 cm/min, we divide them to get 8280/2640= around 3.136 cm/min

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