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ozzi
3 years ago
9

Are diagnoals of a parallelogram always perpendicular

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0

Answer:

yessirrrrrrrrrrrrrrrrrrrrrrtt

Step-by-step explanation:

yes

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For her birthday party, Kelly invited her friends to a nearby roller-skating rink. The area of the rectangular rink is 1,530 ft2
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30ft

Step-by-step explanation:

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7
natulia [17]

Answer:

diagonal = = 12.8 inches (to the nearest tenth of an inch)

Step-by-step explanation:

As shown in the diagram attached to this solution:

Let the Length of the rectangular board = a

Let the width = b

Let the diagonal = d

where:

a = 10 inches

b = 8 inches

d = ?

Triangle ABC in the diagram is a right-angled triangle, therefore, applying Pythagoras theorem:

(hypotenuse)² = (Adjacent)² + (Opposite)²

d² = 10² + 8²

d² = 100 + 64

d² = 164

∴ d = √(164)

d = 12.806 inches

d = 12.8 inches (to the nearest tenth of an inch)

<em>N:B Rounding off to the nearest tenth of an inch is the same as rounding off to 1 decimal place.</em>

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3 years ago
I have hours looking for a tutor, help me please
elena-s [515]

This statement is A. True

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1 year ago
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Which expression is equivalent to
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The answer is the last option. 
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Show all work:<br> -13 +(-56): 14 +9=<br> -16•3 - (-36) /12 =
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-13-56/14+9=
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