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Cloud [144]
2 years ago
5

ILL GIVE BRAINLIEST

Mathematics
1 answer:
blondinia [14]2 years ago
3 0

Answer:

\sin(x _{1} )  =  \frac{1}{2}  \\ \sin(x _{1} ) =  \sin(30 )  \\  x_{1} = 30 \\  \cos(x _{1}) =  \cos(30 )  \\ \cos(x _{1}) =  \frac{ \sqrt{3} }{2}

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Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

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5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12

the, the area of the left triangle is

A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30

the area of the right triangle is

A_2=\frac{2*12}{2} \\A_2=12

and the area of the rectangle in the middle is

A_3=(13)(12)\\A_3=156

Por tanto, el area total sera

A=A_1+A_2+A_3\\A=30+12+156\\A=198

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