Question

HELP PLS. Write an inequality that represents the missing dimension x. The area is less than 18 square centimeters.

Answer 1

Area of trapezoid

• 1/2(sum of parallel sides)(height)
• 1/2(8+4)x
• 12x/2
• 6x

Now

• 6x<18
• x<3cm

Answer 2

The area of trapezoid is:

• A = 1/2(8 + 4)*x = 6x

Since the area is less than 18 cm², the inequality is:

• A < 18 or
• 6x < 18

Simplify by dividing both sides by 6:

• x < 3