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Irina18 [472]
3 years ago
9

The leg of an isosceles triangle has a length 2x+4 and the base has length 3x. The

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Answer:

Base = 57

Step-by-step explanation:

Given

Length = 2x + 4

Base = 3x

Perimeter = 141

Required

Determine the length of the base

The perimeter of an isosceles triangle is:

Perimeter = 2*Length + Base

141 = 2 (2x + 4) + 3x

141 = 4x + 8 + 3x

Collect Like Terms

4x + 3x = 141 - 8

7x = 133

Divide both sides by 7

x = 19

To get the base, we substitute 19 for x in Base = 3x

Base = 3 * 19

Base = 57

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laila [671]
Firstly attention should pe paid to the exact words given in the problem and then only the answer can be easily deduced.
It is a 2 digit number and that is said in the problem
Now For the tens digit it has been said that it is 8 more than the ones digit. The ones digit cannot be zero and that is already mentioned in the problem.
So if we take the ones digit to be 1, then the tens digit will be= 8 +1
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Now if we take the ones digit to be 2, then the tens digit will be = 2 + 8
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3 years ago
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hodyreva [135]
Answer:
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step-by-step explanation:
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line c is perpendicular to lines a and b the slope is
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Trapezoid JKLM is shown on the coordinate plane below:
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Answer:

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Step-by-step explanation:

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