All categories

4 years ago

The diameter of a circle is 5 ft. Find its area to the nearest tenth.

Mathematics

1 answer:

Karo-lina-s [1.5K]4 years ago

5 0

Answer:

A = 19.6 ft²

Step-by-step explanation:

A = πr² Use this equation to find the area of the circle

A = π(2.5)² Multiply

A = π(6.25) Multiply

A = 19.6 ft²

You might be interested in

How many groups of 10 ml are in 1 liter

PilotLPTM [1.2K]

There are 1000ml in a litre
1000 divided by 10 is 100
100 groups of 10ml in 1 litre

4 0

4 years ago

Read 2 more answers

HELPPP what is the answer to this: 8a-6+a-1

grin007 [14]

Answer:

1.3

Step-by-step explanation:

Hope this is correct, if not sorry

6 0

3 years ago

What is the area of a triangle ABC with AB=AC=5cm and BC=6cm?

Vika [28.1K]

Answer: 12 cm^2

Step-by-step explanation:

BC ==> Base of triangle

Divide the triangle in two parts:

BC/2=BC'

6/2=BC'

BC'=3

Distance formula: a^2+b^2=c^2

c^2-a^2=b^2

5^2-3^2=b^2

25-9=b^2

b^2=16

b=4 ==> height of triangle

Area of triangle=A. b=base. h=height

A=1/2 * b * h=

A=1/2 * 6 * 4

A=1/2 * 24

A=12 cm^2

8 0

1 year ago

What is the area of this polygon? 28.5 units² 34.5 units² 37.5 units² 40.5 units² 6 sided polygon on a coordinate plane with ver

LUCKY_DIMON [66]

Answer:

Option B.

Step-by-step explanation:

The given vertices of the polygon are (-6,-2),(-5,1),(-1,4),(1,1),(5,3),(1,-2).

We need to find the area of the polygon.

Plot the given vertices and on a coordinate plane and draw the polygon. Divide the polygon in 4 parts as shown below.

Area of rectangle is

$A=length\times width$

Area of triangle is

$A=\dfrac{1}{2}\times base\times height$

Area of each figure is

$A_1=\dfrac{1}{2}\times 1\times 3=1.5$

$A_2=\dfrac{1}{2}\times 6\times 3=9$

$A_3=\dfrac{1}{2}\times 4\times 3=6$

$A_4=6\times 3=18$

Area of polygon is

$A=A_1+A_2+A_3+A_4$

$A=1.5+9+6+18=34.5$

The area of polygon is 34.5 units².

Therefore, the correct option is B.

3 0

4 years ago

Help me please this will help my grade !

Leni [432]

Answer:

Point D

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers