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son4ous [18]
3 years ago
13

Please help 20 points

Mathematics
2 answers:
insens350 [35]3 years ago
7 0

Step-by-step explanation:

4•10/11 +7•9/11

=54/11+86/11

=140/11

=12•8/11

Snezhnost [94]3 years ago
5 0

Answer:

12\frac{8}{11}

Step-by-step explanation:

4\frac{10}{11} +7\frac{9}{11}

→ Add the whole numbers and numerators

11\frac{19}{11}

→ Turn into proper mixed fraction

12\frac{8}{11}

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A triangle has an area of 900m2 . If a parallelogram has the same height and base as the triangle, what is the area of the paral
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Answer:

1800 m^{2} is the area of parallelogram.

Step-by-step explanation:

Given that:

Area of a triangle = 900 m^{2}

To find:

Area of a parallelogram which has same height and base as that of the given triangle.

Solution:

First of all, let us have a look at the formula for Area of a parallelogram:

Area_{Par} = Base \times Height ...... (1)

So as to find the area of a parallelogram, we need to have the product of Base and Height of Parallelogram.

Now, let us have a look at the formula for area of a triangle:

Area_{Tri} = \dfrac{1}{2} \times Base \times Height

Given that height and base of triangle and parallelogram are equal to each other.

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900 = \dfrac{1}{2} \times Base \times Height\\\Rightarrow Base \times Height = 2 \times 900\\\Rightarrow Base \times Height = 1800\ m^2

By equation (1):

<em>Area of parallelogram = 1800 </em>m^{2}<em> </em>

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