1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
earnstyle [38]
2 years ago
14

In his science class, Boris conducted an experiment in which he used a glass prism to make a rainbow. He now wants to find the s

urface area of the prism. His teacher gets him a paper model of the prism and spreads it into a flat shape called a net. Boris can see that the net has exactly the same number of faces as the prism. The teacher tells Boris that he can use this net to find the surface area of the prism. Use this image of the net of the prism that Boris’s teacher drew to answer the questions in this activity.
Part A
What is the area of triangle i? Show your calculation.

Part B
Triangles i and ii are congruent (of the same size and shape). What is the total area of triangles i and ii? Show your calculation.

Mathematics
1 answer:
Norma-Jean [14]2 years ago
4 0

Answer:

<u>Use the formula for area of the triangle:</u>

  • A = 1/2bh, where b- base, h- height or altitude
<h3>Part A</h3>

<u>The triangle i has:</u>

  • b = 4 cm, h = 1.5 cm

<u>The area is:</u>

  • A = 1/2*4*1.5 = 3 cm²
<h3>Part B</h3>

Triangles have same area as they are congruent.

<u>Total area is:</u>

  • 3*2 = 6 cm²
You might be interested in
tanya purchased 4 hamners for $11.00 each and 7 scewdrivers for $6.65 each write an expresion for the total cost of the tools.th
rewona [7]
X=numbers of hammers
y=numbers of  scewdrivers
f(x,y)= total cost in $

f(x,y)=11x+6.65y

f(4,7)=4(11)+6.65(7)=44+46.55=90.55

Sol: an expresion for the total cost of the tools is f(x,y)=11x+6.65 y; 
x=number of hammers
y= number of  scewdrivers.
The total cost is $90.55
7 0
3 years ago
Read 2 more answers
I NEED HELP ASAP WITH WORK SHOWN PLEASE GIVE ME AN ANSWER WITH WORK SHOWN Multiple choice questions The answers are 2.26,1.15,2.
HACTEHA [7]

Step-by-step explanation:

porportional means they scale by the same ratio

L / W = L_1 / W_2 = 5.4 / 2.5 = 6.21 / x

solve for x

3 0
2 years ago
Read 2 more answers
a recipe for chicken and rice calls for 3 and 1/2 pounds of chicken. Lisa wants to adjust the recipe so that it yields 1 and 1/2
elena-14-01-66 [18.8K]
I'm going to put it into decimals because it is easier. 

3.5*1.5=5.25 or 5 \frac{1}{4}

Hope that helps
3 0
2 years ago
Find the equation of the line through (8,−6) which is perpendicular to the line y=x3−7.
ycow [4]

Answer:

y = (-1/3)(x + 10)

Step-by-step explanation:

The slope of the new (perpendicular) line is the negative reciprocal of the slope of the given line, which appears to be 3.  Thus, the perpendicular line has the slope -1/3.

Using the slope-intercept form y = mx + b, and substituting the givens, we obtain:

y = mx + b    =>    -6 = (-1/3)(8) + b, or

-6 = -8/3 + b.  We must solve for the y-intercept, b:

Multiplying all three terms by 3 removes the fraction:

-18 = -8 + 3b.  Thus, -10 = 3b, and so b must be -10/3.

The desired equation is    

y = (-1/3)x - 10/3, or

y = (-1/3)(x + 10)

8 0
2 years ago
Select the choice that translates the following verbal phrase correctly to algebra: the product of k and m
romanna [79]
<em>km</em>=<em>x, </em>the product being represented by <em>x.
</em><em>
</em>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Graph the inequality -6&lt;d
    5·1 answer
  • What are two decimals whose product is close to 10
    5·2 answers
  • Circle W has a radius of 20 in and right central angle, ∠VWX. Find the length of . Leave your answer in terms of pi.
    9·2 answers
  • What’s the answer to all of it
    10·2 answers
  • According to this site, if you know the coordinates of two points on a line, what form would you use to write the equation of th
    7·1 answer
  • Which ratio is equivalent to 5:9?<br> 10:36<br> 10:27<br> 20:27<br> 20:36
    8·1 answer
  • 5. If on a scale drawing 60 miles
    10·1 answer
  • Hi please help i’ll give brainliest
    10·2 answers
  • Solve the following equation simultaneously 2a-3b+10=0, 10a+6b=8​
    11·1 answer
  • 1.What is the domain of this graph?____
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!