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3 years ago

Please help. will mark brainliest (part two) lol

Mathematics

2 answers:

Archy [21]3 years ago

4 0

Is going to be 32 ft

Svetllana [295]3 years ago

4 0

1. The rope touches the top of the tree, then by similar triangles, the building must be

32 feet tall.

4. The perpendicular bisectors of the three sides of a right triangle intersect on the hypotenuse.

Since that's on the triangle, rather than inside or outside it, the answer is

II only.

A triangle could have sides of 6 cm, 10 cm, and 9 cm.

(In all the other answers, the two shorter sides add up to the length of the larger side or less than that length, so they can't form a triangle.)

If the lengths of two sides of a triangle are 9 and 15,

then the third side must be more than 15 - 9 = 6

and less than 9 + 15 = 24.

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What is the area of this triangle ?

oee [108]

Answer:

Area of triangle is 9.88 units^2

Step-by-step explanation:

We need to find the area of triangle

Given E(5,1), F(0,4), D(0,8)

We will use formula:

$Area\,\,of\,\,triangle =\sqrt{s(s-a)(s-b)s-c)} \\where\,\, s = \frac{a+b+c}{2}$

We need to find the lengths of side DE, EF and FD

Length of side DE = a = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side DE = a = $=\sqrt{(5-0)^2+(1-8)^2}\\=\sqrt{(5)^2+(-7)^2}\\=\sqrt{25+49}\\=\sqrt{74}\\=8.60$

Length of side EF = b = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side EF = b = $=\sqrt{(0-5)^2+(4-1)^2}\\=\sqrt{(-5)^2+(3)^2}\\=\sqrt{25+9}\\=\sqrt{34}\\=5.8$

Length of side FD = c = $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Length of side FD = c = $=\sqrt{(0-0)^2+(8-4)^2}\\=\sqrt{(0)^2+(4)^2}\\=\sqrt{0+16}\\=\sqrt{16}\\=4$

so, a= 8.60, b= 5.8 and c = 4

s = a+b+c/2

s= 8.6+5.8+4/2

s= 9.2

Area of triangle= $=\sqrt{s(s-a)(s-b)s-c)}\\=\sqrt{9.2(9.2-8.6)(9.2-5.8)(9.2-4)}\\=\sqrt{9.2(0.6)(3.4)(5.2)}\\=\sqrt{97.5936}\\=9.88$

So, area of triangle is 9.88 units^2

4 0

3 years ago

Which set of three numbers could be the side lengths of a triangle?

Genrish500 [490]

D.). I think. yeah because 2 side are equal and 1 isn't.

7 0

3 years ago

Read 2 more answers

Can someone help me will give brainlist

MissTica

Answer:
I only know the first one...
C) 4896
Step-by-step explanation:
For the first pick, 18 students to pick from then 17 left and then 16 left.

18 * 17 * 16 = 4896

8 0

2 years ago

-34 > -10 + 4x<br> Help ASAP

irga5000 [103]

Step-by-step explanation:

-34 > -10 + 4x

-24 > 4x

x < -6.

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3 years ago

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As Saturn revolves around the sun, it travels at a rate of approximately 6 miles per second. Convert this rate to kilometers per

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Answer:

Step-by-step explanation:

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3 years ago