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valentinak56 [21]
3 years ago
13

What is the area of the trapezoid shown? Express your answer in simplest exact form.

Mathematics
1 answer:
Eva8 [605]3 years ago
8 0

Answer:

3√3

Step-by-step explanation:

The area of a trapezoid is calculated by multiplying the sum of bases by 2 and that divided by 2

(2 + 4) ÷ 2 × √3 = 3√3

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Cos(-170°) = _____<br><br> -cos10°<br> cos10°<br> cos(-10°)
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<em>The right answer for:</em>

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<em>is:</em>

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cos(a-b)=cosacosb+sinasinb \\ \\ a=180^{\circ} \\ \\ b=10^{\circ} \\ \\ cos(170^{\circ} )=cos(180^{\circ} -10^{\circ})=cos180^{\circ} cos10^{\circ} +sin180^{\circ} sin10^{\circ} \\ \\  cos(170^{\circ})=-cos(10^{\circ})+0 \\ \\ \boxed{cos(170^{\circ})=-cos(10^{\circ})}

<h2>Learn more:</h2>

Trigonometric functions: brainly.com/question/2680050

#LearnWithBrainly

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