Answer:
Step-by-step explanation:
To find the value of x, using Pythagorean theorem.
7) x² = 12² + 12²
= 144 + 144
= 288
x = √2*12*12
x = 12√2
8) x² + 9² = 18²
x² + 81 = 324
x² = 324 - 81
x² = 243
x = √3*9*9
x = 9√3
Difference is 0.8333333333
Just do 3.14+3.14 times the height
Answer:
- 27
Step-by-step explanation:
- 12 + 2( - 4) - 7
- 12 - 8 - 7
-20 - 7
- 27