Answer:
66 cm
Step-by-step explanation:
Diameter (d) = 21 cm

The answer is 6/40. All the others equal 1/5.
Answer:
59.5
Step-by-step explanation:
area of the triangle is (7 x 3)/2=21/2=10.5
area of the square 7x7=49
Answer:
Step-by-step explanation:
1 3^2 is =
subtract what u get from up here
boooooom