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4 years ago

Someone please help fast I will mark as brainelist

Mathematics

1 answer:

timama [110]4 years ago

7 0

Answer:

1.economics 2.endangered species 3. environmental impact statement

Step-by-step explanation:

sry if its wrong i did it really fast

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Work out the area of the trapezium ABDE. B 9 cm 6 cm 8 cm →D E

Evgen [1.6K]

Answer:

Area of the trapezium ABDE = 30 cm²

Step-by-step explanation:

Area of a trapezium = $\frac{1}{2}(b_1+b_2)h$

Here, $b_1$ and $b_2$ are the parallel sides of the trapezium

h = Distance between the parallel sides

From the picture attached,

ΔCAE and ΔCBD are the similar triangles.

So by the property of similarity their sides will be proportional.

$\frac{AE}{BD}= \frac{CE}{CD}$

$\frac{9}{6}=\frac{CE}{8}$

CE = $\frac{9\times 8}{6}$

CE = 12 cm

Therefore, DE = CE - CD

DE = 12 - 8 = 4 cm

Now area of trapezium ABDE = $\frac{1}{2}(AE+BD)(DE)$

= $\frac{1}{2}(6+9)4$

= 30 cm²

Therefore, area of the trapezium ABDE = 30 cm²

8 0

3 years ago

A painter uses 1.2 liters of the paint to cover 1m^2of the wall.

Hitman42 [59]

The amount of paint used is 8.4 litres.

<h3>EXPLANATION</h3>

To work this out, you need to times 1.2 by 7, to get the answer of 8.4 litres.

Hope this helps!

3 0

4 years ago

Planes A and B intersect. Which describes the intersection of plane A and line m? Oline k B m Olinen À point X O point W X 3 k Y

choli [55]

Answer:

It is a straight line

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

1.) Name two pairs of adjacent angles

likoan [24]

Answer:

DE, BA

Step-by-step explanation:

These two pair of angles meet at the point G, they touch, therefore adjacent.

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3 years ago

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Angle Relationships

mario62 [17]

Answer:

D. 0.62

Step-by-step explanation:

I calculated it logically

6 0

3 years ago