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Alexxx [7]
3 years ago
14

Find the measure of the indicated angle. Need help please.

Mathematics
1 answer:
Anit [1.1K]3 years ago
5 0

Answer:

The measures of interior angles of a triangle sum to 180°.

63+60=123

180-123=57

Angle AB is 57°

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Prove that the following four points will form a rectangle when connected in order
Lemur [1.5K]

Answer:

Step-by-step explanation:

If the diagonals of the rectangle are congruent,

AC = BD

By using formula to calculate the distance between two points,

Distance between two points = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance between A(0, -3) and C(2, 8),

AC = \sqrt{(8+3)^2+(2-0)^2}

     = \sqrt{125}

     = 5\sqrt{5}

Similarly, distance between two points B(-4, 0) and D(6, 5),

BD = \sqrt{(5-0)^2+(6+4)^2}

     = \sqrt{125}

     = 5\sqrt{5}

Therefore, both the diagonals are congruent.

Hence, given quadrilateral ABCD is a rectangle.

8 0
3 years ago
Please help! The problem and answer choices are in the attachment below.
Ray Of Light [21]
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4 0
3 years ago
A yield sign measures 30 inches on all three sides. what is the area of the sign
Nookie1986 [14]

Answer:

450

Step-by-step explanation:

To find an area of the triangle, you must first multiply the base and the height.

5 0
3 years ago
£70 is divided between Natasha, Richard &amp; Stephen so that Natasha gets twice as much as Richard, and Richard gets three time
Mekhanik [1.2K]

Answer:

  £42

Step-by-step explanation:

The ratio of Richard's amount to Stephen's amount is ...

  R : S = 3 : 1

The ratio of Natasha's amount to Richard's amount is ...

  N : R = 2 : 1 = 6 : 3

Then the ratio of all three amounts is ...

  N : R : S = 6 : 3 : 1

The proportion of the total that Natasha gets is ...

  6/(6+3+1) = 6/10

so she gets ...

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Natasha gets £42.

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3 years ago
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NNADVOKAT [17]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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