3 years ago

How to you calculate the area of regular octagon?

Mathematics

1 answer:

Nataliya [291]3 years ago

6 0

Answer:

A = 2 (1 + √2) a^2

Step-by-step explanation:

a- one side of the octagon

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Pls tell me the rest of the angles. Angle 1 is 112.9 degrees

Annette [7]

1. 112.9

2. 67.1

3. 112.9

4. 67.1

hope that helped^^

6 0

3 years ago

Solve the equation. 5x + 10 = 15 A. 3 B. 1 C. 5 D. 25

nikklg [1K]

Answer:

B. 1

Step-by-step explanation:

5x + 10 = 15

-10 -10

5x = 5

÷ 5 ÷ 5

x = 1

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3 years ago

The perimeter of a rectangular campsite is 64 cm and its area is 207 cm. Find the length and the breadth of the rectangle.

AlladinOne [14]

Perimeter Formula:
$2l + 2b = 64$

Area Formula:
$l \times b = 207$
Set perimeter Formula equal to b:
$2l + 2b = 64 \\ 2(l + b) = 64 \\ l+ b = 32 \\ b = 32 - l$
Plug formula for be we just made above into the area Formula:
$(32 - l) \times l = 207$

Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.

Here's a link to where the problem has been explained before (they go into more detail than me).

https://brainly.ph/question/468631

lmk if you need any more help

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3 years ago

Read 2 more answers

What is the slope of the line that passes through the points

svetoff [14.1K]

Answer:

Step-by-step explanation: