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2 years ago

PLEASE HELP LOOK AT PICTURE YOU ANSWER I GIVE BRAINLIEST

Mathematics

2 answers:

Sloan [31]2 years ago

5 0

Answer:

Solution given;

l=1.8cm

b=1.8cm

h=2.7cm

now

lateral surface area =2(lb+lh+bh )

=2( 1.8*1.8+1.8*2.7+1.8*2.7)

=25.92cm² is a required answer.

Norma-Jean [14]2 years ago

4 0

Answer:

Your answer would be 26.64cm.

A step-by-step explanation for you, peabrain:

For all four sides:

1.8cm x 2.7cm = 4.86cm

4.8cm x 4 sides = 19.44cm

For the top and bottom:

1.8cm x 1.8cm = 3.6

3.6cm x 2 sides = 7.2cm

For the complete LSA (lateral surface area):

19.44 + 7.2cm = 26.64cm

Do not forget to round, if that is in your homework instructions :-)!

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Answer/Step-by-step explanation:

1. To find the area of the shaded region, you'd find the area of the white rectangular shape, next, find the area of the whole triangular shape, then find the difference of their areas to get the area of the shaded region. Thus, the formula to use would be:

Area of shaded region = area of triangle - area of rectangle

Area of shaded region = ½*base*height - length*width

1. a. Volume of triangular prism = area of triangular base * height of prism

Volume of triangular prism = ½bh * H

Where,

b = 6 m

h = 4 m

H = 8 m

Substitute

Volume of prism = ½*6*4*8

Volume of prism = 96 m³

b. Volume of sphere = ⁴/3πr³

Where,

r = 9 cm

Substitute

Volume = ⁴/3*π*9³

Volume = ⁴/3*π*729

Volume ≈ 3,053.6 cm³ (nearest tenth)

2. Use Pythagorean theorem to find the height of the cone

radius of the cone (r) = ½(16) = 8 cm

Slant height (l) = 11 cm

height (h) = ?

Using Pythagorean theorem, we have:

h = √(l² - r²)

Substitute

h = √(11² - 8²)

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