Answer:
The correct answer is $12
Step-by-step explanation:
To check, subtract 12 from 31
31 - 12 =19
Multiply 19 by 2
19 x 2 =38
Add 12
38 + 12 =50
Answer:
D: (0,3)
Step-by-step explanation:
Answer:
340.2
Step-by-step explanation:
18.0 x 18.9 = 340.2
Answer:
Step-by-step explanation:
let one diagonal=x
other diagonal=3x
area=1/2 (x±3x)=3/2 x²=54
x²=54×3/2=81
x=9 cm
3x=3×9=27
sum of diagonals=x+3x=4x=4×9=36 cm
Area = \frac{a X p}{2}
Area = apothem times perimeter over 2