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labwork [276]
3 years ago
7

Please someone answer this, “what is the area of triangle ABC?”

Mathematics
1 answer:
prisoha [69]3 years ago
4 0

Here's the solution,

The given triangle is an <u>equilateral triangle</u>, because it's all angles measure 60° each

now,

Area of an equilateral triangle :

=》

\dfrac{ \sqrt{3} }{4}  {a}^{2}

where,

  • a = 8 ( side measure )

=》

\dfrac{ \sqrt{3} }{4}  \times 8 \times 8

=》

\sqrt{3}  \times 16

=》

16 \sqrt{3} \:  \:  \:  cm {}^{2}

or

=》

27.71 \:  \: cm {}^{2}

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A rectangle measures 18 cm by 3 cm what is its area
ioda

Answer:

54 cm²

Step-by-step explanation:

Area of a Rectangle Formula: A = lw

We are given 18 as <em>l</em> and 3 as <em>w</em>, so simply plug it into the formula:

A = 18(3)

A = 54

5 0
3 years ago
2+2+2+2+2÷2×2-2-2-2-2​
tresset_1 [31]

Step-by-step explanation:

2+2+2+2+2÷2×2-2-2-2-2=2

4 0
3 years ago
Read 2 more answers
Liam, Sarah and Emily shares some money in the ratio 2:3:7.
nignag [31]

Answer:

Emily got 7x

Liam got 2x

7x = 2x + 80

5x = 80

x = 16

Liam got 32, <u>Sarah got 48</u>, and Emily got 112

Step-by-step explanation:

3 0
3 years ago
Cheryl is planting a row of flowers 10ft. Long in her garden.If she plants a flower every 1/3ft. How many flowers can she plant?
Ivanshal [37]
1/3 = 0.33
10 ÷ 0.33 = 30.30
she could plant 30 flowers.
(you can't have .3 of a plant so you get rid of the decimal)
8 0
3 years ago
UNIT 5: CEREAL BOX PROJECT / PORTFOLIO
docker41 [41]

The volume of the cuboid of the box is 180 inches³ while the volume of the cylinder is 235.5 inches³.

<h3>How to calculate the volume?</h3>

The volume of the cuboid will be:

= Length × Width × Height

= 12 × 2 × 7.5

= 180 inches³

The volume of the cylinder will be:

= πr²h

= 3.14 × 2.5² × 12

= 235.5 inches³

The surface area of the cuboid will be:

= 2(12 × 2) + 2(12 × 7.5) + 2(7.5 × 2)

= 48 + 180 + 30

= 258 inches²

The surface area of the cylinder will be:

= 2πrh + 2πr²

= (2 × 3.14 × 2.5 × 12) + (2 × 3.14 × 2.5²)

= 188.4 + 39.25

= 227.65 inches²

Learn more about volume on:

brainly.com/question/1972490

5 0
2 years ago
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