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Lady bird [3.3K]
3 years ago
8

Please can someone help my assignment​

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
3 0

Answer:

Step-by-step explanation:

In ΔJOY and ΔLAF,

If ∠O ≅ ∠J

And \frac{JO}{AL}=\frac{YO}{FA}

Then ΔJOY ~ ΔLAF

By SAS property of similarity of two triangles.

(If two corresponding sides of the triangles are proportional and angles between these sides are equal)

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678,985,488 in expanded notation
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Six hundred seventy-eight million nine hundred eighty-five thousand four hundred eighty-eight. (I think)
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In the town zoo 3/8 of the animals are birds. Of the birds 4/15 are birds of prey. What fraction of the animals are nirds of pre
poizon [28]
<span>3/8 of the animals are birds<span>
of the birds: 4/15 are birds of prey

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3 years ago
an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.​
dolphi86 [110]

Answer:

\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

A_\triangle=\dfrac{bh}{2}

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

<em />

We need a length of a height.

Use the Pythagorean theorem:

leg^2+leg^2=hypotenuse^2

We have:

leg=5,\ leg=h,\ hypotenuse=20

Substitute:

5^2+h^2=20^2

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Calculate the area:

A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2

8 0
3 years ago
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wariber [46]
1 and 1/2 is the right one
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3 years ago
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