3 years ago

What is the area of triangle ABC Round to the nearest tenth of a square unit

1 answer:

Inga [223]3 years ago

5 0

Where’s the triangle, isn’t there supposed to be a picture with the question

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zepelin [54]

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o-na [289]

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2 years ago

amm1812

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Anni [7]

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3 years ago

Brrunno [24]

Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

The height of the wall, h = 15 ft

We know that,

$\sin\theta=\dfrac{h}{H}$

h is perpendicular and H is hypotenuse

So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

6 0

3 years ago