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Brilliant_brown [7]
3 years ago
7

Determine perimeter

Mathematics
2 answers:
jeka943 years ago
8 0

Answer:

20cm

Step-by-step explanation:

7.2 + 7.2 + 2.8 + 2.8 = 20

iris [78.8K]3 years ago
4 0

Each side of the rectangle is equal to the side opposite from it. That means you have 2 sides of 7.2 cm and 2 sides of 2.8 cm.

To find perimeter, you add all the sides. So that's 7.2 + 7.2 + 2.8 + 2.8, which is 20 cm altogether.

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Answer:

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Step-by-step explanation:

To solve for the leg of the missing right triangle, one must use the Pythagorean theorem. The Pythagorean theorem states the following,

a^2+b^2=c^2

Where (a) and (b) are the sides adjacent to or next to the right angle. (c) is the side opposite the right angle. Substitute in the given values and solve for the unknown,

a^2+b^2=c^2\\

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a^2+1600=2209\\

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