Answer:
5089.4cm³ (rounded to 1 d.p.)
Step-by-step explanation:
Volume of cylinder =
× r² × h
Volume of cylinder =
× 9² × 20
= 1620
= 5089.4cm³ (rounded to 1 d.p.)
Answer:
true
Step-by-step explanation:
A whole bag of colored candles has 45 candles in it.
If 18 are red, then 27 are blue.
Blue: 27/45 = 3/5 = 0.6 = 60%
Red: 18/45 = 2/5 = 0.4 = 40%
* If you need anymore help or have any questions, feel free to ask me! I'd be happy to help you!
Answer:
The angle between the building and the ladder
6.9°
Step-by-step explanation:
Given data
AB = 50 ft = length of the building
BC = 6 ft
= Angle between the ladder & building
From Δ ABC


6.9°
This is the angle between the building and the ladder.
Question 1:We have a 45-45-90 right triangle with the hypotenuse being the length from one corner to the opposite corner.
Multiply 30 ft with the square root of 2 and use a calculator to help give you numerical value to get your answer.

Your answer is the second choice.
Question 2:The equilateral triangle can be divided into 2 30-60-90 triangles with the longer leg being the altitude. To get half of the side length of the right triangle, divide the altitude by the square root of 3.

The full side length is double of that, which is

.
Multiply that by 3 to get the full perimeter.

Your answer is the third choice. Hope this helps! :)