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evablogger [386]
3 years ago
11

If a triangle has sides that are 21 and 6 what is the range for third side x?

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

15<x<27

Step-by-step explanation:

Rule for the sides of a triangle:

The sum of the two smallest sides of a triangle must be greater than the biggest side.

In this question:

Sides of 6, 21 and x. We have to find the range for x.

If 21 is the largest side:

Two smallest are 6 and x.

x + 6 > 21

x > 21 - 6

x > 15

If x is the largest side:

Two smallest and 6 and 21. So

21 + 6 > x

27 > x

x < 27

Then

x has to be greater than 15 and smaller than 27. So the answer is:

15<x<27

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The equation for a parabola has the form y = ax2 + bx + c, where a, b, and c are constants and a ≠ 0. find an equation for the p
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The length of a rectangle is 4 inches more than its width, and its perimeter is 34 inches. Find the length and width of the
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Answer:

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Step-by-step explanation:

Let

"l" be length of rectangle

and

"w" be width of rectangle

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