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alisha [4.7K]
3 years ago
5

A rectangle is

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

21 by 3

Step-by-step explanation:

3x7=21

21+21=42

3+3=6

42+6=48

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Calculating the Surface Area of a Triangular Prism The triangular prism shown has 1235 triangular face(s) and 1235 lateral face(
GenaCL600 [577]

Corrected Question

The triangular prism shown has 1, 2, 3 or 5 triangular faces and 1,2,3, or 5 lateral faces.

The area of one triangular face is 7.5,8.125,15,or 17  mm^2

The surface area of the triangular prism is 55.5,127.5,135,or 150  mm^2

Answer:

(B)2 triangular faces

(C)3 lateral faces.

(A)Area of one Triangular Face =7.5mm^2

(C)Total Surface Area of the Triangular prism =135mm^2

Step-by-step explanation:

The triangular prism is attached.

The triangular prism shown has 2 triangular faces and 3 lateral faces.

Base of the triangle =2.5mm

Height of the Triangle =6mm

Area of one Triangular Face =\frac{1}{2}*6*2.5=7.5mm^2

The dimensions of the lateral rectangles are:

  • 2.5 mm by 8mm
  • 6 mm by 8mm
  • 6.5 mm by 8mm

Therefore, total surface area of the triangular prism

=2(Area of one Triangular Face)+Area of 3 rectangular faces

=2(7.5)+ (2.5 X 8+ 6 X 8 + 6.5 X 8)\\=15+120\\=135mm^2

Total Surface Area of the Triangular prism =135mm^2

8 0
3 years ago
The ratio of the lengths of and is 2 : 1.
borishaifa [10]
The answer is 2 hopefully this helped
6 0
3 years ago
Is 8/12 greater than 10/15?<br><br> and how do you know?
valentina_108 [34]

Answer:

no, they are equal. we know this because when reducing both they are equal.

Step-by-step explanation:

first find the least common denominator

that's 3

reduce fractions until the denominator is both 3

we get 2/3 and 2/3. the proportions are equal.

8 0
3 years ago
Read 2 more answers
Find the diagonal of a square whose sides measure 3 square root 2
mrs_skeptik [129]

The Pythagorean theorem can be used to find the length of the diagonal (d) of a square.

d² = (3√2)² + (3√2)² = 18 + 18 = 36

d = √36 = 6

The measure of the diagonal is 6.

8 0
3 years ago
Can some help with this problem
lys-0071 [83]

Answer:

x+115=180 x=65

90+65+y=180 y=25

Step-by-step explanation:

5 0
3 years ago
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