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2 years ago

Work out the area of a rectangle with base, b = 32mm and perimeter, P = 82mm.

Mathematics

2 answers:

jasenka [17]2 years ago

8 0

Hey there! I attached a pic of how to solve this. Hope it helps!

Amanda [17]2 years ago

7 0

Perimeter = 2base + 2base
82 - 2(32) = 18 : 2 = 9
area = 9*32 = 288mm^2

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3 years ago

What is the volume of a right circular cone if the circumference of the base is 125.6 ft and the height is 75 ft.? Use π=3.14 an

Alex_Xolod [135]

Answer:

The volume of a right circular cone is $31400\ \text{feet}^3$ .

Step-by-step explanation:

The circumference of the base of a right circular cone is 125.6 ft.

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Circumference of base is :

$C=2\pi r$ , r is radius

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{125.6}{2\times 3.14}\\\\r=20\ ft$

The volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\V=\dfrac{1}{3}\times 3.14\times (20)^2\times 75\\\\V=31400\ \text{feet}^3$

So, the volume of a right circular cone is $31400\ \text{feet}^3$ .

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3 years ago

Work out the area of a rectangle with base, b = 32mm and perimeter, P = 82mm.​

Work out the area of a rectangle with base, b = 32mm and perimeter, P = 82mm.