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scoray [572]
3 years ago
9

What is the area of this trapezoid?

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
7 0

Answer:

30 units²

Step-by-step explanation:

this ones kinda tricky but basically you need to dilate it all by 2 (to make the figure twice as big)

technically, it would be 7.5 units bc but bc of the dilation it'd be 30

liberstina [14]3 years ago
4 0

Answer:

7.5\:\text{square units}

Step-by-step explanation:

The area of a trapezoid is given by the average of the bases multiplied by the height.

What we're given:

  • Height of 3
  • Bases of 1 and 4

The average of the bases 1 and 4 is equal to \frac{4+1}{2}=\frac{5}{2}=2.5

Therefore, the area of the trapezoid is 2.5\cdot 3=\boxed{7.5\:\text{square units}}

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Answer:

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Step-by-step explanation:

(a)

Since points L and M have same x coordinates, it means they are in the same plane. Also, since the Y coordinates of L and N are same, they also lie in the same plane

Length LM=\sqrt {(7-7)^{2}+(16-4)^{2}}=12 units

Length LN=\sqrt {(42-7)^{2}+(4-4)^{2}}=35 units

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Alternatively, since this is a right angle triangle, length MN is found using Pythagoras theorem where

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(b)

Perimeter is the distance all round the figure

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(c)

Area of a triangle is given by 0.5bh where b is base and h is height, in this case, b is LN=35 units and h=LM which is 12 units

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