3 years ago

Find the perimeter of the polygon.

1 answer:

6 0

Answer: 100 cm.

Explanation: To find the perimeter of any 2-D shape, simply add all the sides together:

10+24+11+7+5+19+8+16=100
Perimeter=100

Hope that helps シ

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What is angle a? ive already gotten the other side

ololo11 [35]

Answer:

$m\angle A=\tan^{-1}(\frac{m}{n})$

$AB=\sqrt{m^2+n^2}$

Step-by-step explanation:

Given:

In Δ ABC

m∠C= 90°

$BC=m$

$AC=n$

For the triangle ABC we can apply trigonometric ratio to find m∠A.

We have:

$\tan\angle A=\frac{BC}{AC}$

Substituting values of side BC and AC

$\tan \angle A=\frac{m}{n}$

Taking inverse tan to get m∠A.

∴ $m\angle A=\tan^{-1}(\frac{m}{n})$

AB can be found out using Pythagorean theorem:

AB being the hypotenuse can be written as

$AB^2=BC^2+AC^2$

Substituting values of side BC and AC

$AB^2=m^2+n^2$

Taking square roots both sides:

$\sqrt{AB^2}=\sqrt{m^2+n^2}$

∴ $AB=\sqrt{m^2+n^2}$

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7 8/21, 7.6, 7 2/3, 7.71, 7 4/5

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