How can you tell if two polygons with 3 sides are similar

1 answer:

6 0

Similar polygons have the same shape, but can be different sizes. Specifically, two polygons are
similar if two things are true:

The corresponding sides of each are in the same proportion
The corresponding interior angles are the same (congruent).

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What are the values of X and Z.

stiv31 [10]

Answer:

x = 12, z = 86

Step-by-step explanation:

Two angles are called supplementary when their measures add up to 180 degrees.

(12x -58 + 13x - 62 ) = 180°

12 x + 13x -58 - 62 = 180°

25x - 120 = 180

25x = 180 + 120

x = 300/ 25

x = 12

----------------------------------------------------------------------------------

(z° + 13x - 62) = 180

(z° + 13(12) - 62 )= 180

(z° + 156 - 62 )= 180

(z° + 94 ) = 180

z° = 180 - 94

z = 86

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3 years ago

Find dy/dx if y=(4x^2-5x)^8

musickatia [10]

dy/dx = 8(8x - 5)(4x² - 5x )^ 7

differentiate using the ' chain rule '

dy/dx = 8(4x² - 5x)^ 7 × d/dx (4x² - 5x)

= 8(4x² - 5x)^ 7 × (8x - 5)

= 8(8x - 5)(4x² - 5x) $^{7}$

6 0

3 years ago

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Explain how you could write 45 3/8 in scientific notation

vlada-n [284]

First you must change 3/8 into a decimal, so the number would be 45.375. To find scientific notation you have to move the decimal between a factor of 1-10. 4.5375 . You moved over the decimal once toward the left. so scientific notation would be 4.5375 X 10^1

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3 years ago

All the pupils at a primary school come from one of three villages: Elmswell, Haughley or Woolpit. 1/4 of the pupils come from E

Jlenok [28]

Answer:

Step-by-step explanation:

Given that:

All the pupils at a primary school come from one of three villages: Elmswell, Haughley or Woolpit.

$\frac{1}{4}$ of the pupils come from Elmswell