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3 years ago

The figure shows a right triangle next to a square.

Mathematics

2 answers:

vodka [1.7K]3 years ago

6 0

Answer:

50cm²

Step-by-step explanation:

Square- length x breadth

=5cmx 5cm

=25cm²

Triangle- ¹/₂ x base x perpendicular height

= ¹/₂x 5cm x 10cm

=25cm²

Square- 25cm²

Triangle-+<u>25cm²</u>

total area- 50 cm²

I hope it helps

Thank U

stich3 [128]3 years ago

5 0

Answer:

Step-by-step explanation:

By using the Formula:

Areatriangle=10*5/2=25

Areasquare=5*5=25

Total Area is: 25+25=50

It will be nice if you give me brainliest.Good luck!

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

How many elements are in the union of four sets if

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Answer:

Step-by-step explanation:

Let A, B, C and D sets.

Let |A| the number of elements of A.

Remember, the quantity of elements that have the set $A\cup B\cup C\cup D$ is

$|A\cup B\cup C\cup D|=|A|+ |B|+ |C|+|D|-|A\cap B|-|A\cap C|-|A\cap D|-|B\cap C|-|B\cap D|-|C\cap D|-|A\cap B\cap C|-|A\cap B\cap D|-|B\cap C\cap D|-|A\cap B\cap C \cap D|$

1. Since each set has 100 elements,

2. each pair of the sets shares 50 elements

3. each three of the sets share 25 elements,

4. the four sets share 5 elements

Then

$|A\cup B\cup C\cup D|=100+100+100+100-50-50-50-50-50-50-25-25-25-5=20$

So, there are 20 elements in the union of the sets A, B, C and D

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3 years ago