2 years ago

PLEASE HELP !!!

Mathematics

1 answer:

storchak [24]2 years ago

7 0

Answer: 60°, 72°, 90°, 120° and 180°

Step-by-step explanation:

To calculate the angle of rotational symmetry of a shape or polygon, you make use of this formula

$\frac{360}{n} where n is the number of sides of the shape$

example for a Square with 4 sides. the angle of rotational symmetry is 360/4 =90°.

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On a blueprint, the scale indicates that 8 cm represent 16 feet. What is the length of a room that is 8.8 cm long and 3 cm wide

lana [24]

For the answer to the question above asking wWhat is the length of a room that is 8.8 cm long and 3 cm wide on the blueprint if <span>a blueprint, the scale indicates that 8 cm represent 16 feet?
</span>The room is 22.4 feet long

8cm=16ft
9.8cm=?ft

8cm 9.8cm
______=______
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Cross multiply
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divide both sides by 8
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4 0

2 years ago

What is the equivalent fraction for 35/42

Lubov Fominskaja [6]

Answer:

An equivalent fraction is 5/6

Step-by-step explanation:

In order to find this, divide both parts of the fraction by 7.

35/7 = 5

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Now we can put this back together as a fraction.

5/6