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Dominik [7]
3 years ago
13

The diagram below shows the rectangle BOAR B Find the length o fsegment PA . if entering your answer as a decimal, round your fi

nal answer to the nearest hundredth

Mathematics
1 answer:
yulyashka [42]3 years ago
7 0

Answer:

4.62 units

Step-by-step explanation:

Let's first find the length OR.

OR² = BR² + OB²

OR² = 5² + 12²

OR² = 25 + 144

OR² = 169

OR = \sqrt{19}

OR = 13

Let's find the area of triangle OBR.

Using the formula :

½bh

Where

b = BR

h = OB

Therefore, area of triangle OBR =

½ * BR * OB

= ½ * 5 * 12

= 30

From the diagram, triange OBR and OAR are parallel to each other, and they equal.

Thus, area of OBR = area of OAR

To find the length PA, we have :

Area of OAR = ½ * OR *PA

Let's make PA subject of the formula:

PA = \frac{area of OAR}{\frac{1}{2} * OR}

PA = \frac{30}{\frac{1}{2} * 13}

PA = 4.618 ≈ 4.62

PA = 4.62 units

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Complete question :

The Venn diagram relating to the question can be found in the picture attached below :

Answer:

A.) 15 ; b.) 17 ; c.) 20 ; d.) 19 ; e.) 55 ; 67; 76 ;100 ; F.) 369

Step-by-step explanation:

Let :

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B.) How many students ride in both a motorcycle and a tricycle?

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(100 + 67 + 76 + 55 + 19 + 20 + 17 + 15) = 369

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