Answer:
Area of semicircle =( π r2)÷ 2
= 1/2 × 22/7 × 11 ×11
= 11 × 17.5
= 19.25 CM2
The answer to your question is : C. 30
You subtract 72 and 42
72-42=30
It is important to remember that weight is not the same as mass - the weight of an object and its mass are directly proportional . This means that for a given gravitational field strength, the greater the mass of the object, the greater its weight.