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3 years ago

Why does a triangle have 3 sides?

2 answers:

7 0

The word "triangle" came into use in Late Middle English directly from the Latin "triangulus" by dropping the Latin "us" ending.

Triangulus is a compound word made of two Latin words.

Tri, is a prefix form of tres, which means three (3)Angulus, meaning corner.

Masja [62]3 years ago

4 0

A triangle has 3 sides because squares have already taken 4 sides. If u didn't know tri means 3, so that triangle has 3 sides. hope that helped

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A boy who is flying a kite lets out 300 feet of string which makes an angle of 60o with the ground. Assuming that the string is

Aleks [24]

<h3>Answer :</h3>

See the attachment for better understanding.

Given : Length of string (AC) = 300ft

To Find : Height of the kite from ground (AB)

$:\implies\sf\:sin60^{\circ}=\dfrac{AB}{AC}$

$:\implies\sf\:\dfrac{\sqrt{3}}{2}=\dfrac{H}{300}$

$:\implies\sf\:H=\dfrac{300\sqrt{3}}{2}$

$:\implies\sf\:H=150\sqrt{3}$

$:\implies\:\boxed{\bf{\red{H\approx 260\:feet}}}$

Hope it helps !

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3 years ago

State the property or properties illustrated by the statement. 5. 23 + = 23

Ksju [112]

Answer:

23 + 0

Step-by-step explanation:

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2 years ago

1. Find the total surface area of the shape below: 9 cm 8 cm 10 cm 8 cm 12 cm

lisabon 2012 [21]

Answer:

There isn't the picture

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3 years ago

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denis23 [38]

Answer:

the answer is 17.3 repeated

Step-by-step explanation:

because 52 divided by 3

8 0

2 years ago

Let a=(?2,1,2, b=(?1,2,4, and p=(k,k,k. the vector from a to b is perpendicular to the vector from a to p when k =

prohojiy [21]

Vector a = (2, 1, 2)
Vector b = (1, 2, 4)
Vector p = (k, k, k)

Vector a to vector b = vector b - vector a = (1, 2, 4) - (2, 1, 2) = (1 - 2, 2 - 1, 4 - 2) = (-1, 1, 2)
Vector a to vector p = vector p - vector a = (k, k, k) - (2, 1, 2) = (k - 2, k - 1, k - 2)

Vector a to b is perpendicular to vector a to p if the dot product of vector a to vector b and vector a to vector p is equal to zero.
i.e. (-1, 1, 2) . (k - 2, k - 1, k - 2) = 0
-1(k - 2) + (k - 1) + 2(k - 2) = 0
-k + 2 + k - 1 + 2k - 4 = 0
2k -3 = 0
2k = 3
k = 3/2

6 0

3 years ago