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2 years ago

Quadrilaterals are similar if their corresponding sides are proportional. true or false

Mathematics

2 answers:

Dafna11 [192]2 years ago

6 0

Answer:

FALSE

Step-by-step explanation:

Corresponding angles must also be congruent for the figures to be similar. Proportional sides is <em>not a sufficient condition</em>.

lara [203]2 years ago

5 0

Answer:

The given statement is true.

Step-by-step explanation:

Quadrilaterals are similar if their corresponding sides are proportional.

This statement is true.

Quadrilaterals are similar when

a) corresponding angles are equal

b) the corresponding sides are proportional i,e the ratios of corresponding sides are equal

So, the given statement is true.

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Craig used 4 scoops of soil to fill 2/5 of a plant pot. How many scoops will Craig need to fill the whole plant pot?

liberstina [14]

Answer:

Step-by-step explanation:

4=2/5 8=4/5 10=5/5

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3 years ago

Are these lines parallel or not: L1: (1,2), (3,1), and L2: (0,-1), (2,0)

Phoenix [80]

First find the slope of the first line

m = ( y2-y1)/(x2-x1)

m = ( 1-2)/(3-1)

= -1/2

Now find the slope of the second line

m= ( y2-y1)/(x2-x1)

= ( 0 - -1)/(2 -0)

= (0+1)/(2-0)

= 1/2

Parallel lines have the same slope

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These lines are not parallel.

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1 year ago

Can someone answer this with work :)

olga nikolaevna [1]

Answer:

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Step-by-step explanation:

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2 years ago

A plane is descending towards a runway in Chicago. The plane is flying at an altitude of 11 miles and is 193 miles from the runw

Flura [38]

The plane will make an angle $3.26^{\circ}$ with the runway.

Explanation:

Given that the plane is flying at an altitude of 11 miles and is 193 miles from the runway, as measured from the ground.

We need to determine the angle that the plane will make with the runway.

From the given measurements, we can see that it is a right angled triangle. Hence, let us use the tangent formula to determine the angle.

The formula for the tangent is given by

$tan \ \theta=\frac{opp}{adj}$

Where $opp=11$ and $adj=193$

Substituting these values in the above equation, we get,

$tan \ \theta=\frac{11}{193}$

Dividing, we get,

$tan \ \theta=0.057$

Taking $tan^{-1}$ on both sides of the equation, we get,

$\theta= tan^{-1}(0.057)$

Simplifying, we have,

$\theta= 3.26^{\circ}$

Hence, the angle that the plane will make with the runway is $3.26^{\circ}$

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3 years ago

How can you use angle bisectors of triangles in real life situations to solve problems?

lina2011 [118]

I would guess that bisecting angles and other geometrical constructs are used by architects when they are drafting the designs of buildings.

8 0

3 years ago