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2 years ago

Please help me find the perimeter and area of this parallelogram.

Mathematics

2 answers:

nadezda [96]2 years ago

7 0

Answer:

Hello,

Area -

You have to times the height and the width

Width is top and Height is the side

Take 15 x 6 = 90 cm

Perimeter -

(This parts a little hard for me)

Then I think you have to do...

The perimeter of a parallelogram is the distance around the outside of the parallelogram

A parallelogram has four sides with opposite sides being congruent.

The formula for finding the perimeter is Side A + Side B + Side A + Side B.

(But here's a tip the side are the same because they are the same height)

Hope this helps and am Very sorry if i am wrong cause i have not done this in a long time

Step-by-step explanation:

kati45 [8]2 years ago

3 0

Answer:

60 in

Step-by-step explanation:

15 x 4= 60

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A=LWH
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3 years ago

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son4ous [18]

We have been given the steps to solve the equation as

Step 1: 2x = 18

Step 2: x = 18 − 2

Step 3: x = 16

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So we must divide both sides by 2.

Therefore, A is the correct option.

A) She did not divide 18 by 2.

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3 years ago

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If you can solve all parts I will give brainliest (also give strategy)

Alexxx [7]

The Halloween conical hat, with given height, circular base and brim

extension has the following calculated parameters;

Part a. The slant height is 18.2 inches

Part b. The volume of the cone is $37\frac{1}{2} \cdot \pi$ in.³

Part c. The area of the brim, A = 36·π in.²

Part d. The area of the brim is found by subtracting the area of the base of the cone from the area covered by the perimeter of the brim

Reasons:

Known parameters;

Height of the conical portion, h = 18 inches

Base circumference, C = 5·π inches

Part a. Slant height of the conical portion; Required

Solution:

The circumference of a circle, C = 2·π·r

Therefore;

$r = \dfrac{C}{2 \cdot \pi}$

Which gives;

$r = \dfrac{5 \cdot \pi}{2 \cdot \pi} = \dfrac{5}{2} = 2.5$

Radius, r = 2.5 inches

According to Pythagoras's theorem, we have; s² = r² + h²

Where;

s = The slant height of the cone

s² = 2.5² + 18² = 330.25

s = √(330.25) ≈ 18.2

The slant height, s ≈ 18.2 inches

Part b. The measure in cubic inches of candy that exactly fills the conical portion of the hat is the volume of the cone.

$Volume \ of \ a \ cone = \dfrac{1}{3} \cdot \pi \cdot r^2 \cdot h$

Therefore;

$V = \dfrac{1}{3} \times \pi \times 2.5^2 \times 18 = 37\frac{1}{2} \cdot \pi$

The volume of the cone, V = $37\frac{1}{2}$ ·π in.³

Part c. The extension of the brim from the base of the cone = 4 inches

The radius of the brim, R = Radius of the base of the cone + 4 inches

∴ R = 2.5 inches + 4 inches = 6.5 inches

Area of the brim, A = Area of the 6.5 inch circle - Area of the circular base of the cone

∴ A = π × 6.5² - π × 2.5² = 36·π

The area of the brim, A = 36·π in.²

Part d. The procedure for solving the question in part c, is described as follows;

The area of the brim can be found by finding the entire area of the circle formed by the perimeter of the brim, then subtracting the area of the base of the cone from that area.

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1. Solve and verify each of the following systems of linear equations.

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