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Rufina [12.5K]
3 years ago
15

A triangle with sides of lengths 10, 18 and 21 is a right triangle?

Mathematics
2 answers:
Virty [35]3 years ago
6 0

Answer:

it's false

Step-by-step explanation:

i just took the test

const2013 [10]3 years ago
4 0

Answer:

No. Se below for explanation

Step-by-step explanation:

If it is a right triangle it sides must meet the Pitgoras Theorem, wich says that the legs squared when summed must be equal to the square of the hypotenuse. Here the legs would be the sides of length 10 and 18, as the hypotenuse is always the longest. So we need to see:

10^ 2 + 18^2 = x

if x is equal to 21^2, so we can have a right triangle, if not, we cannot.

10^ 2 + 18^2 = 100 + 324

10^ 2 + 18^2 = 424

But:

21^2 = 441

So, as 10^2 + 18^2 < 21^2 this can not be a right triangle.

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3 years ago
Jalil plays hockey. When Jalil takes a shot on goal, the probability that he scores is . If Jalil takes 80 shots on goal in a se
lions [1.4K]

Answer:

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Step-by-step explanation:

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3 years ago
Tyler took 33 photos while on a class field trip this is three times as many photos as Kayla took which equation can be used to
prisoha [69]
33 divided by 3= 11, so Kayla took 11 photos.
7 0
3 years ago
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Question 1: Paul leaves £4000 in the bank for two years.
Marta_Voda [28]

Answer:

4410

Step-by-step explanation:

A=Px(1+R)^n

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8 0
3 years ago
Which segment is an altitude of triangle IGH? (See attachment)
Reptile [31]

Answer: segment KH

Explanation:

The altitude of a triangle is defined as a segment connecting one of the vertex of the triangle with the opposite side of the triangle (or with an external prolongation of it), forming a right angle with it.

Note that the altitude of a triangle can also be outside the area of the triangle.

If we look at the picture, we see that:

- IH is a side, so it is not an altitude of the triangle

- KH is an altitude of the triangle, since it connects the vertex H with the external prolongation of IG, and it makes a right angle with it

- GJ: we don't know if it is an altitude, since we don't know if it forms a right angle or not

- GH: it is a side of the triangle, so it is not an altitude

So, the correct answer is segment KH.

7 0
3 years ago
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