Respuesta :

12Av13
1] Square; Rectangle; Quadrilateral.

2] All rectangles are Quadrilaterals.

3] Arrange four equal length sides, so the diagonals are equal length also.

4] As per the Isosceles trapezoid.
Base angles are equal to each other and upper both angles are equal to each other too.
So,
20x+9 = 14x+15
20x-14x = 15-9
6x = 6
x = 1°

K = M = 29°

Sum of all angles of quadrilateral equal to 360°.

360-(29+29) = 360-58 = 302°

Sum of upper both equal angles is 302°.
One of them will be 302/2 = 151°

Answer will be 151°.

Answer:

I just took the test and only missed one witch was the first question i answered square, rectangle, quadrilateral  

1. rectangle; square; quadrilateral; parallelogram; rhombus

2.  All rectangles are Quadrilaterals.

3. Arrange four equal length sides, so the diagonals are equal length also.

4.

Base angles are equal to each other and upper both angles are equal to each other too.

So,

M<j=20x+9 = M<m=14x+15 find M<k

20x-14x = 15-9

6x = 6

x = 1°

K = M = 29

the angles of a Quadrilateral equal  360°.

360-(29+29) = 360-58 = 302°

302/2 = 151°

so your answer would be  151°.

hope this helps

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