CAN SOMEONE PLEASE SOLVE THIS?

141; B; C; A,B; 144

Step-by-step explanation:

1. There are 7 sides on the figure. All 7-sided polygons (heptagons) have an interior angle sum of 900. When you write an equation you get:

125+122+131+126+107+148+x = 900.

When you isolate x on one side, you get:

x=900-759 --> x = 141

2.If QPSR is a parallelogram, then measure of angle Q = S.

When you plug in the values for Q and S, you get:

6x+13=7x-5, which means that 18 = x

The measure of angle Q is 6(18) + 13, which simplifies to 121 degrees.

Angle P + Q must equal 180 if QPSR is a parallelogram. 180 - 121 = 59.

B

3. If the figure is a parallelogram, 4a+1 = 2a+9 AND 6b = 11b-10

4a +1 = 2a +9 -->

2a = 8 -->

a = 4

6b = 11-10 -->

10 = 5b -->

2 = b

C

4. A, B (Laws of Parallelograms)

5. The sum of the interior angles is always 360 degrees. This means that each exterior angle on an n-gon = 36 degrees. Exterior angle + interior angle = 180. This makes 36 + interior angle = 180, which makes the interior angle equal to 144

i dony know

step-by-step explanation:

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2