Pls help with this one thank you guys!

68.8 cm²

Step-by-step explanation:

Area of trapezium = 1/2(sum of parallel sides) × height

Area = ½(8.6 + 12.9) × 6.4

Area = ½ × 21.5 × 6.4

Area = 21.5 × 3.2 = 68.8 cm²

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm