Answer:
175.3 mm^3.
Step-by-step explanation:
Volume = pi r^2 h
= pi * 3^2 * 6.2
= 175.3 mm^3.
Answer:
The answer is
<h3>2 to 1 significant figure</h3>
Step-by-step explanation:

To solve the question first convert the mixed fraction to an improper fraction
That's

So we have

Find the LCM of the fractions
The LCM of 5 and 4 is 20
That's


= 2.15
We have the final answer as
<h3>2 to 1 significant figure</h3>
Hope this helps you
Answer:
The area of rectangle is 12cm² and the perimeter is 14cm.
Step-by-step explanation:
First, you have to find the length of the rectangle using Pythagoras Theorem :
a² + b² = c²
a² + 3² = 5²
a² = 5² - 3²
a² = 16
a = √16
a = 4 cm
Next, you have to find the perimeter and area of rectangle :
Perimeter = 2(length + breadth)
P = 2(4 + 3)
P = 2(7)
P = 14 cm
Area = length×breadth
A = 4×3
A = 12 cm²
Answer:
72
Step-by-step explanation:
15 + 15 + 12 + 12 + 18 gives you 72 you add all the areas