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Montano1993 [528]
3 years ago
7

What's the area and perimeter of a right triangle with sides 5, 12 and 13( 5 and 12 are the base and height)

Mathematics
2 answers:
umka21 [38]3 years ago
8 0
Area of <span>a right triangle =base*height/2=5*12/2=5*6=30</span>
uysha [10]3 years ago
7 0
Perimeter is 30 
Area is also 30. 

Add the numbers to get the perimeter and then use 1/2bh to get the area. <span />
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Figures ABCD and PQRS are parallelogram find x and y (lengths are in metres) Part i and ii.​
STatiana [176]

Step-by-step explanation:

For 1st question

In a parm ABCD

5x - 4 = 16 ( being opposite sides of parallelogram)

5x = 16 + 4

5x = 20

x = 20 / 5

x = 4

3y + 1 = 22 (being opposite sides of parallelogram)

3y = 22 -1

3y = 21

y = 21 / 3

y = 7

For second question

In parm PQRS

Diagonals bisect each other so

x + 4 = 12

x = 12 - 4

x = 8

x + y = 32

8 + y = 32

y = 32 - 8

y = 24

Hope it will help :)❤

8 0
3 years ago
How would I start to solve number 15? Would I use distributive property?
natita [175]
-5-x=2x-(4x+6)

Using the distributive property is the correct first step. (4x+6) is being multiplied by -1, so distributing gives

-5-x=2x+(-4x-6)
-5-x=2x+((-4x)+(-6))

Now, using the associative property of addition, you get

-5-x=(2x+(-4x))+(-6)
-5-x=(2x-4x)-6

Simplify the right hand side:

-5-x=-2x-6

Add 5 and 2x to both sides.

(2x+5)-5-x=(2x+5)-2x-6

On the left side, use the associative property. On the right, commutativity and associativity:

2x+(5-5)-x=5+(2x-2x)-6

Simplify.

2x-x=-1
x=-1
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3 years ago
Which two polygons is this polygon subdivided into?
marysya [2.9K]

Answer:

no diagram

Step-by-step explanation:

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2 years ago
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daser333 [38]
The total cost of the mirror would be $24 because 6 times 4 equals 24.
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2 years ago
Multiply. 3 1/2 x 4=​
IrinaK [193]
The answer is 14
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3 years ago
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