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3 years ago

I have to find the area

Mathematics

2 answers:

andrew11 [14]3 years ago

6 0

Your best choice is 11.55.

5.5 · 4.2 equals 23.1. You don't need the 6.9.

You then need to do 23.1 ÷ 2 which is 11.55 m².

Hope this helps!

Alina [70]3 years ago

4 0

The formula for finding the area of a triangle is: base*height*1/2
So, if we use this information....
4.2*5.5*1/2=11.55
Area=11.55

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Step-by-step explanation:

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First we will draw a right angle triangle ΔABC, where ∠B = 90°

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If the angle of elevation, ∠ACB = α, then

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As we need to find the rate of change of the angle of elevation, so we will differentiate both sides of equation (1) with respect to time (t) :

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Here, the firework is launched from point B at the rate of 10 feet/second and when it is 40 feet above the ground it reaches point A,

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Step-by-step explanation:

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Answer:

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