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lesya692 [45]
3 years ago
9

How many sides are on a triangle?

Mathematics
2 answers:
Ratling [72]3 years ago
6 0

There are 3 sides. If you draw out a triangle, each line is a separate side (a line segment connecting 2 vertices, or points). You can also see in the word "triangle" the prefix "tri-", meaning "three". It refers to the shape having 3 angles, but when there are 3 angles there are 3 sides to make it up. This is true for other shapes too - in a square, there are 4 sides connecting 4 points, and between each side is an angle, creating 4 angles.

omeli [17]3 years ago
6 0

Answer:

Three

Step-by-step explanation:

A triangle is a 2-D figure having three sides, three vertices , and three angles formed in it.

The sum of all the three angles in a triangle is 180°

Also, Area of a triangle = \frac{1}{2}*base*altitude

Altitude is the perpendicular height of a triangle from the base of it

Perimeter of a triangle=  Sum of length of all its three sides

In a right angled triangle the Pythagoras Theorem can be applied to find its third side if two are given:    

        (Length of Hypotenuse)²=(Length of Base)²+(Length of Perpendicular)²

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vivado [14]

Answer:

15.6km

Step-by-step explanation:

Given the map scale 1:200000

1cm on the map represents 200000 cm on ground or in actual distance

Hence, if distance from Belfast to Larne is 7.8vm on map ;

Actual distance will be :

7.8 * 200000 = 1560000 cm

Converting to km :

Recall :

1000 m = 1km

100 cm = 1 m

Hence,

100000 cm = 1km

Therefore, (1560000 / 100000) km

= 15.6km

Hence, distance between Belfast and Larne is 15.6km

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3 years ago
How do you do this question?
omeli [17]

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2 years ago
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The radius of a large sphere is 8 times the radius of a small sphere. the surface area of the large sphere is how many times the
kondaur [170]
Large sphere's radius = R,
small sphere's radius = r, R = 8r
surface area of a sphere (SA) = 4×pi×radius^2
So what we need is the SA of the larger in terms of the smaller sphere, so if:
SA (of R) = 4×pi×R^2, then plug in "8r" for "R"...
SA = 4×pi×(8r)^2 = 4×3.14×64r^2
SA = 12.57×64r^2 = 804 r^2
Therefore the SA of the larger sphere is 804 times the SA of the smaller sphere.
I hope that makes sense!
8 0
4 years ago
On a coordinate plane, 2 lines are shown. Line M N goes through (negative 4, 8) and (negative 4, negative 6). Line K L goes thro
nataly862011 [7]

Answer:

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Step-by-step explanation:

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The given lines are perpendicular as one is parallel to x, another one is parallel to y

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3 years ago
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