Mathematics

Grade9

Easy

Question

Find the value of x.

6.3°
7.7°
7.36°
14.28°

hint Hint:

$s u m space o f space i n t e r i o r space a n g l e s space o f space a space p e n t a g o n space i s space 540 degree.$

The correct answer is: 7.36°

$s u m space o f space i n t e r i o r space a n g l e s space o f space a space p e n t a g o n space i s space 540 degree. 4 x to the power of o space plus space 5 to the power of o space plus space 13 x to the power of o space plus space 2 x to the power of o space plus space 9 to the power of o space plus space x to the power of o space plus space 7 to the power of o space plus space 2 x to the power of o minus 3 to the power of o space equals space 540 to the power of o 22 x to the power of o space equals space 540 to the power of o space minus space left parenthesis 18 to the power of o space right parenthesis 22 x to the power of o space equals 522 to the power of o x to the power of o space equals space 522 to the power of o over 22 to the power of o space equals 23.7 to the power of o$

What is the sum of interior angles of a triangle?

the sum of interior angles of a triangle = $180 to the power of o$
the sum of exterior angles of a triangle = $360 to the power of o$

What is the sum of interior angles of a triangle?

MathematicsGrade9

the sum of interior angles of a triangle = $180 to the power of o$
the sum of exterior angles of a triangle = $360 to the power of o$

Grade9

Mathematics

$text The measure of end text angle E C D text is end text$ ____________.

The alternate angle theorem states that when two parallel lines ( AB and CD) are cut by a transversal (here DB ), then the resulting alternate interior angles or alternate exterior angles are equal

$text The measure of end text angle E C D text is end text$ ____________.

MathematicsGrade9

The alternate angle theorem states that when two parallel lines ( AB and CD) are cut by a transversal (here DB ), then the resulting alternate interior angles or alternate exterior angles are equal

Grade9

Mathematics

The value of k is _____.

we can also conclude that PR = QS by simply observing the symmetry of the figure. However, mathematical reasoning should also be acknowledged. In a parallelogram, opposite angles and sides are equal

The value of k is _____.

MathematicsGrade9

we can also conclude that PR = QS by simply observing the symmetry of the figure. However, mathematical reasoning should also be acknowledged. In a parallelogram, opposite angles and sides are equal

Grade9

Mathematics