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3 years ago

12

A parallelogram has an area of 84 square centimetres and a base of 4 centimetres. Write and solve an equation to find the length

of the height in centimetres

1 answer:

aniked [119]3 years ago

7 0

Answer:

21cm

Step-by-step explanation:

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The perimeter of a rectangle is 20 ft. The width 8th 4 ft less than the length. Find the dimensions of the rectangle

Gala2k [10]

Perimiter is 20ft
width is
what
do you mean the width is 8 feet less than the length? or 4ft less?

anyway

P=2(L+W)
20=2(L+W)
divide by 2
10=L+W
and
L=10-W

width is 4ft less than length (I assuming)
W=-4+L
repalce W with -4+L
L=10-(-4+L)
L=10+4-L
L=14-L
2L=14
L=7
W=-4+L
W=-4+7
W=3

it is 7ft by 3ft

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Answer:

A quadrilateral become square if all the sides joining the co-ordinate of quadrilateral is equal

Step-by-step explanation:

Here the given co-ordinate of quadrilateral are

G (3, -1) O(1, -6)

L(-4, -4) F(-2, 1)

Line GF = $\sqrt{(3+2)^2+(-1-1)^2}$

GF = $\sqrt{29}$

Similarly for line OG, OL, FL

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OL = $\sqrt{(-4-1)^2+(-6+4)^2}$

OL = $\sqrt{29}$

And

FL = $\sqrt{(-4+2)^} +(-4+1)^2$

FL = $\sqrt{29}$

all the sides of quadrilateral GF, OG, OL, FL all equal to $\sqrt{29}$

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