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pychu [463]
2 years ago
15

Suppose you have two skateboard ramps. What information do you need to know to prove that the triangular ramps are congruent usi

ng SAS? Using HL?
Mathematics
1 answer:
UkoKoshka [18]2 years ago
6 0
To prove HL you need to prove that the same leg of both of the triangles are congruent and the hypotenuse, and they must be right triangles.

HL- I'd the hypotenuse an a led if a right triangle are congruent to the hypotenuse and a led if another right triangle, then the triangles are congruent.

For SAS, the two sides and the included angle of one triangle are congruent to two sides and the included angle if anther triangle, then the two triangles are congruent.
So you basically need to prove that a side, angle, and a side are congruent......

I really hope that this made sense.....tell me if not.
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Explain how making a table helps to compare two or more sets of data that have been presented in different ways.
vlabodo [156]
Making a table helps compare two or more sets of data because you can see how much it has increased or decreased. 
4 0
2 years ago
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Stephen spent $4 on milk, $6 on eggs, and $11 on cereal. He wrote the ratio 6/11 to describe some of his purchases. Explain why
o-na [289]
Attached the solution and work.

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2 years ago
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One end of a 4ft iron rod is attached to the center of a pulley with radius of 0.5 ft. The other end is attached at a 40 degree
mr_godi [17]
We use the formula
L = rθ
where s is the arc length or the length of the wire
r is the distance from the center to the end of the rod
θ is the angle made by the rod with the wall

Substituting the values and converting the angle to radian measure
L = 4 (40°) (π/180°)
L = 2.79 feet<span />
3 0
2 years ago
Dora drove east at a constant rate of 75 kph. One hour later, Tim started driving on the same road at a constant rate of 90 kph.
PIT_PIT [208]
Ok so let T=time from when Tim starts
Distance Tim travels= T*90
Distance Dora travels=T*75 + 75  (<as already started)
for him to have caught up His distance must equal hers so:
90T=75T + 75  (now minus 75T)
15T=75  (now divide by 15)
T=5 :)
So five hourse, hope this helped :)


3 0
2 years ago
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In ΔXYZ, x = 71 cm, y = 91 cm and z=71 cm. Find the area of ΔXYZ to the nearest square centimeter.
anyanavicka [17]

since its an isoscelies trangle, they probably wanted you to do base times height

make a 71-91/2-x x triangle

where x is the height of the triangle to the base 91 and 71 is the hypothenuse

and then do bh/2

or

use heron's formula

s= 71+91/2

area= \sqrt{(71+91/2)(71+91/2-71)(71+91/2-71)(71+91/2-91)}

have fun solving that

5 0
2 years ago
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