You work out 500-82=418
Next you do 300-61=239
Finally you add 239+412=657
Answer:
a) 19 cm
Step-by-step explanation:
Area of a parallelogram: b • h
<u>Given values:</u>
- A = 228 cm²
- b = ? cm
- h = 12 cm
Substitute these values into the formula:
⇒ A = b • h
⇒ 228 = b • 12 [multiply]
⇒ 228 = 12b [divide both sides by 12]
⇒ 228 ÷ 12 = 12b ÷ 12
⇒ 19 = b
Therefore, the base of the parallelogram is 19 cm.
If it isnt in standard form already it would be 69000000