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ANEK [815]
3 years ago
9

Find the area of the triange belowunits given are cm, cm^2, cm^3​

Mathematics
1 answer:
notsponge [240]3 years ago
4 0

Answer:

A=150\ cm^2

Step-by-step explanation:

The Hypotenuse of triangle, H = 25 cm

Base = 15 cm

Height = 20 cm

We need to find the area of the triangle. The area of a right-angled triangle is given by :

A=\dfrac{1}{2}\times b\times h\\\\A=\dfrac{1}{2}\times 15\times 20\\A=150\ cm^2

So, the area of the triangle is equal to 150\ cm^2.

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Answer:

A. Building A, it is around 100.69 feet taller than building B.

Step-by-step explanation:

Since building A is 120 feet away at and elevation of 40^{0}, then:

Tan 40^{0} = \frac{x}{120}

Where x is the height of the building at the horizontal plane.

x = Tan  40^{0} × 120

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For building B at the same elevation,

Tan  40^{0} = \frac{x}{60}

 x = Tan  40^{0} × 60

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Since the angle of elevation are the same, building A is around 100.69 feet taller than building B.

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A


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