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Vinil7 [7]
3 years ago
10

Use a composite figure to estimate the area of the figure. The grid has squares with side lengths of 1.5 cm.

Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

about 49.1\ cm^{2}

Step-by-step explanation:

The area of the composite figure is approximate to the area of the rectangle plus the area of the semicircle at the top of the rectangle plus the semicircle at the right of the rectangle

<em>Find the area of the rectangle</em>

A=(3*1.5)(4*1.5)=27\ cm^{2}

<em>Find the area of the semicircle at the top of the rectangle</em>

A=\frac{1}{2}\pi (2*1.5)^{2}=4.5 \pi\ cm^{2}

<em>Find the area of the semicircle at the right of the rectangle</em>

A=\frac{1}{2}\pi (1.5*1.5)^{2}=2.53 \pi\ cm^{2}

The area of the composite figure is

27\ cm^{2}+4.5 \pi\ cm^{2}+2.53 \pi\ cm^{2}=(27+7.03 \pi)\ cm^{2}

use \pi=3.14

(27+7.03(3.14))=49.1\ cm^{2}

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Answer: \dfrac{15}{32}

Step-by-step explanation:

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The probability of selecting a cherry lollipop is given by :_

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The probability of selecting a lollipop other than grape is given by :_

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Since, there is replacement , then the events are independent of each other.

Now, the probability that Julie will select a cherry lollipop and then a lollipop other than grape is given by :-

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3 years ago
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