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Find the area of the composite shape below.
Make sure you show all work including your formulas. Round your answer to the nearest hundredth.

Answer and Step-by-step explanation:

First work out the area of the semi circle so, To do this we find the area a circle and half it.

We know that:

→ The radius of the semi circle is 4.

→ To find the area of a circle is it radius² x π

→ Therefore the area of the semi circle is 4 ² x π

→ Then divide this by 2.

→ Then you should get 16 π which equals 50.26548246 cm ².

Now, to find the area of the triangle:

→ The area of a triangle is base x height divided by 2.

→ Therefore you should get 9 x 8 divided by 2 which you should get to 36 cm ².

→ Then add the two together to get:

86. 26548246.

→ Then round to the newest hundredth to get to the final answer of : 86.27cm².

21

step-by-step explanation:

11279

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c