Jehiah wants to refinish a circular table that is 2.8 meters in diameter. If the...

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October 2022 1 2 Report

Jehiah wants to refinish a circular table that is 2.8 meters in diameter. If the refinishing costs ₱115 per square meter, how much will she spend?

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DarkParadox

$\qquad\qquad\huge\underline{{\sf Answer}}$

Here we go ~

radius = diameter ÷ 2 = 2.8 ÷ 2 = 1.4 m

Let's calculate the area of circular table :

$\qquad \tt \dashrightarrow \:area = \pi {r}^{2}$

$\qquad \tt \dashrightarrow \:a = \dfrac{}{}3.14\times (1.4 {}^{} ×1.4)$

$\qquad \tt \dashrightarrow \:a = 3.14 \times1.96$

$\qquad \tt \dashrightarrow \:a \approx 6.1544\: m {}^{2}$

So, as we see the area of table is 6.1544 m², and for finishing up 1 m² we need ₱115.

Hence, the sum of money we need to refinish the table is :

$\qquad \tt \dashrightarrow \:115 \times 6.1544$

$\qquad \tt \dashrightarrow \:₱ \: \:707.75$

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