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Scorpion4ik [409]
2 years ago
5

Solve each triangle – find any missing side and angle measures. Round answers to the nearest tenth.

Mathematics
1 answer:
Inessa [10]2 years ago
3 0

Here ABC is a right angle triangle because 1 angle is 90°

BY ASP,

90+56+ angle CAB=180

angle CAB=34°

rounded to nearest = 30°

sin A =opp/hyp

sin 30 = 7/x

1/2=7/x

x=14

rounding to nearest 10

14 =10

AB=10

By Pythagoras Theorem,

AB²=BC²+AC²

AC²=AB²-BC²=10² - 7²

100- 49 = 51

AC=root 51

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Reformatting the input :

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<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span> (5n2 + 10n) + 20 </span><span>Step  2  :</span><span>Step  3  :</span>Pulling out like terms :

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Trying to factor by splitting the middle term

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The first term is, <span> <span>n2</span> </span> its coefficient is <span> 1 </span>.
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Step-1 : Multiply the coefficient of the first term by the constant <span> <span> 1</span> • 4 = 4</span> 

Step-2 : Find two factors of  4  whose sum equals the coefficient of the middle term, which is  <span> 2 </span>.

<span><span>     -4   +   -1   =   -5</span><span>     -2   +   -2   =   -4</span><span>     -1   +   -4   =   -5</span><span>     1   +   4   =   5</span><span>     2   +   2   =   4</span><span>     4   +   1   =   5</span></span>
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