3 years ago

Will you help me i am have a lot of trouble on this on

Mathematics

1 answer:

vodka [1.7K]3 years ago

7 0

Answer:

A = 18 cm²

Step-by-step explanation:

The volume (V) of a prism is calculated as

V = area of base (A) × height

Here V = 216 cm³ and h = 12 cm , then

A × 12 = 216 ( divide both sides by 12 )

A = 18 cm² ← area of base

You might be interested in

Correct answer gets brainliest or who ever answered first

timurjin [86]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy

bixtya [17]

Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

$V=\pi r^2h$

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let $h_1$ be the height of the cone.

-The area of a cone is calculated as;

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1$

The volume of the solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

$V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)$

Hence, the approximate area of the solid portion is $3.14r^2(h-\frac{1}{3}h_1)$

5 0

3 years ago

Stefan spent half of his weekly allowance on clothes. To earn more money his parents let him wash the car for $5

Alenkasestr [34]

8-5=3 is the remaining half
weekly allowance=2(1÷2) where (1÷2) is 3
2×3=6

The weekly allowance should be 6.

7 0

2 years ago

A ladder is 12 metres long . It leans against a wall with one end on the ground 7 metres from the wall. The other end just reach

MissTica

Answer:

window sill height =9.75 meters

Step-by-step explanation:

Ladder^2=height^2+length^2

12^2=height^2+7^2

144=height^2+49

height^2=144-49=95

height=9.75

6 0

3 years ago

the audience in a theatre is made up of the following ratio: men:women:children 3:4:5. there are 348 people in the audience. cal

scoundrel [369]

There are 87 men 3 is the male ratio You add all the ratios 3+4+5=12 3/12×348 =87

7 0

3 years ago