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Sloan [31]
2 years ago
12

The perimeter of the rectangle is 56 cm. Find the value of x. 10 cm 3x cm

Mathematics
2 answers:
krek1111 [17]2 years ago
7 0
Answer: x = 6

Explanation:

P = 2(l + w)
56 = 2(3x + 10)
56 = 6x + 20
56 - 20 = 6x
36 = 6x
36/6 = x
6 = x

Therefore, x = 6
andriy [413]2 years ago
4 0
56-10=46. 46 divided by 3=15.3 with the 3 repeating
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Answer:

Therefore

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Step-by-step explanation:

Given:

m angle 1 = ( 3x + 10 )°

m angle 2 = ( 5x - 4 )°

To Find:

m∠1 = ?

m∠2 = ?

Solution:

Vertical Angles:  

The angles opposite each other when two lines cross. They are always equal.

∴ m Angle 1 = m Angle 2

Substituting the given values we get

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Substituting ' x ' in Angle 1 and Angle 2 we get

m Angle 1 = 3 × 7 + 10 = 31°

m Angle 2 = 5 × 7 - 4  = 31°

Therefore

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