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DedPeter [7]
3 years ago
8

Pls help I forgot how to solve this kind of problem

Mathematics
2 answers:
Maslowich3 years ago
8 0

Answer:

72.1110255093 cm

Step-by-step explanation:

round it if you have to

Airida [17]3 years ago
4 0

Answer:

75 cm

Step-by-step explanation:

The diagonal d divides the rectangle into 2 right triangles with d as the hypotenuse.

Using the right triangle formed on the left and using Pythagoras' identity.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

d² = 45² + 60² = 2025 + 3600 = 5625 ( take square root of both sides )

d = 75

The diagonal is 75 cm

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The second hexagon: 3, 3, a, b, c, d

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a=\dfrac{3}{2}=4.5

\dfrac{b}{4}=\dfrac{3}{2}    <em>multiply both sides by 4</em>

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\dfrac{c}{6}=\dfrac{3}{2}     <em>multiply both sides by 6</em>

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d=\dfrac{21}{2}=10.5

The perimeter:

P=4.5+6+9+10.5=30

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Step-by-step explanation:

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