
Actually Welcome to the Concept of the areas.
Since we know that, radius = diameter /2
here, => d = 2r ,
hence we use the formula as,
A = πr^2 ,
here option d.) is correct.
Answer:
16 cm^2
Step-by-step explanation:
Formula = 1/2 * base * height
1/2 * 8 * 4 = 16
16 cm^2
-12n - 19 = 77
-12n = 96
n = -8
4/3(pi)radius^3
4/3(pi)3.8^3
229.8473cm3
6 is the area of the square