3 years ago

How do i find the perimeter and area

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

Answer: Perimeter: 34 Area: 70

Step-by-step explanation:

You would multiply 10x7 and then since there is 2 above the numbers you would multiple the answer you got for 10x7 which is 17 and then you would multiply 17x2 and you get 24 and that's how you find the answer to the perimeter.

You might be interested in

What is 7/4 as a mixed number

valentinak56 [21]

The answer to the question is 1 and 3/4

6 0

3 years ago

Read 2 more answers

When the shaded region below is rotated about the x-axis the resulting solid is a circular cone with radius 2 m and height 3 m.

WARRIOR [948]

Answer:

Therefore, the volume of the cone is V=4π.

Step-by-step explanation:

From task we have a circular cone with radius 2 m and height 3 m. We use the disk method to find the volume of this cone.

We have the formula:

$\boxed{V=\int_0^h\pi \cdot \left(\frac{r}{h}x\right)^2\, dx}$

We know that r=2 and h=3, and we get:

$V=\int_0^3\pi \cdot \left(\frac{2}{3}x\right)^2\, dx\\\\V=\int_0^3 \pi \frac{4}{9}x^2\, dx\\\\V= \frac{4\pi}{9} \int_0^3 x^2\, dx\\\\V= \frac{4\pi}{9} \left[\frac{x^3}{3}\right]_0^3\, dx\\\\V= \frac{4\pi}{9}\cdot 9\\\\V=4\pi$