Answer:
cccccc
Step-by-step explanation:
The length of DE is 39 and the length of EF is 36 because we can see from side AC and DF that triangle DEF is just triangle ABC dilated by 3.
Answer:
79
Step-by-step explanation:
3+9
2
−4
1 Simplify {9}^{2}9
2
to 8181.
6\div 3+81-4
6÷3+81−4
2 Simplify 6\div 36÷3 to 22.
2+81-4
Simplify 2+812+81 to 8383.
83-4
Simplify.
79
Answer: 7cm
Step-by-step explanation:
The solution could be found using Pythagoras to solve the length of the side of the cube :
Let edge = A
Face diagonal (F) = 10cm
Inner diagonal (I) = sqrt(150) cm
A^2 = I^2 - F^2
A^2 = [sqrt(150)]^2 - 10^2
A^2 = 150 - 100
A^2 = 50
A = sqrt(50)
A = 7.0710678 cm
A = 7cm (to the nearest tenth)
Therefore, length of an edge = 7cm
Answer:
La regla del coseno establece que el cuadrado de la longitud de cualquier lado de un triángulo es igual a la suma de los cuadrados de la longitud de los otros lados menos el doble de su producto multiplicado por el coseno de su ángulo incluido.
Step-by-step explanation:
