3x-12=90
3x=90+12
3x=102
/3. /3
102 divided by 3 on both sides
X=34 degrees
Answer:
(-2, -4.5)
Step-by-step explanation:
Answer:
Area of the shaded region be 251.74 cm² .
Step-by-step explanation:
Formula
i.e
As shown in the figure.
AB = 28 cm , DC = 12cm and h = 14 cm
Putting in the above
Area of trapezoid = 280 cm²
Formula
Where r is the radius of the circle.
r = 3 cm
Area of two semicircle = 28.26 cm²
Area of the shaded area = Area of trapezoid - Area of two semicircle
= 280 cm² - 28.26 cm²
= 251.74 cm²
Therefore the area of the shaded region be 251.74 cm² .