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VashaNatasha [74]
4 years ago
6

20 points! Find the measure of angle x. Find the value of x.

Mathematics
1 answer:
anyanavicka [17]4 years ago
8 0

In the first figure we have an angle that subtends a diameter.  Those are always right angles, so

Answer: x=90 degrees

In the second figure we have to notice that the measure of arcs and central angles are interchangeable -- the measure of an arc is its central angle.

The units are implicitly degrees; the 10 should say 10°

These are supplementary angles so they add to 180°

3x + (7x + 10) = 180

10x = 170

x = 17

Answer: x=17

17° would be more accurate but the units are a bit ambiguous here so I'll leave it.


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PLS HELP I WILL GIVE BRAINLIEST
mr_godi [17]

Answer:

21 square feet

Step-by-step explanation:

To find out the area of this irregular figure, divide it into two rectangles and add their areas.. This can be done in two ways.

Version 1: 6 * 2 rectangle and 3 * 3 square

(6 * 2) + (3 * 3)

12 + 9

21 sq. ft.

Version 2: 5 * 3 rectangle + 2 * 3 rectangle

(5 * 3) + (2 * 3)

<em>You could really just do 7 * 3 here.</em>

7 * 3

21 sq. ft.

Either way, you still get 21 square feet as your answer.

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