Problem

$12$
$11$ The following table shows he daily supply of electricity to different places in a town.
show the information by a pie diagram, measures of central angles of sectors are $l0$
decided Complete the follov ing activity to find the measures:
$11$
Places Supp y of electricity Measure of central angle
(Thousand units) $s\right)$
Roads $4$ $\dfrac {4} {30}\times 360=48^{°}$
Factories $12$ $-\times 360=144^{°}$ $-$
Shops $6$ $\dfrac {6} {30}\times 360=$ $\square $
Houses $8$ $-$ $-$ $\times 360=$ $→$
Total $30$

10th-13th grade

Algebra

Solution

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