Consider the cross-sectional right triangle shown in the figure.
One of its sides is the height of the pyramid, with length H. The other side is half of the square base, so its length is 81 m. The hypotenuse of this triangle is the height of one of the faces.
By right triangle trigonometry,

,
thus,

.
Answer: C) 52 m
I'll teach you how to do them, but not do them all for you.
2.
6:5 = ___:35
35 / 5 = 7
So you've got to multiply 6 by 7.
6:5 = 42:35
3.
2:3 = 20:___
20 / 2 = 10
So you've got to multiply 3 by 10
2:3=20:30
4.
36:24 = 6:___
36 / 6 = 6
So you've got to divide 24 by 6.
36:24 = 6:4
Keep trying and if you need more help feel free to ask.
Answer:A for the first one and C for the second one
Step-by-step explanation:
Answer:
9.4
Step-by-step explanation: