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
kakasveta [241]
3 years ago
15

What’s the area of this triangle?

Mathematics
1 answer:
tankabanditka [31]3 years ago
3 0

Answer:

26.75

Step-by-step explanation:

There are two ways to do this. You can use the base*height/2 formula for the area of the triangle, or use the complex formula of determining triangle area without height.

The first is A=(b*h)/2

In this case you need to find the height using a²+b²=c²

Take your base (7.6) and divide it by 2 this will give you the bottom side of your triangle (3.8) now plug this, and the side value of 8 into the formula. Remember c is the hypotenuse (diagonal side) and x is the height.

3.8²+x²=8²

14.44+x²=64

x²=49.56

x=7.039 -now you have the height for the triangle and can use this to find the area

A=b*h (in this case we dont have to divide by two since we need two triangles because we split the original in two to find the base of 3.8)

so it's 3.8*7.039=26.75

(If you need more help look up Silicon Valley High school's video titled, "How to find the area of a triangle (without the height)"

It will teach you the formula A=\sqrt{s(s-a)(s-b)(s-c)} which teaches you to find the area of any triangle when all you are given is three sides

You might be interested in
sixteen students received awards for perfect scores on math or spelling quizzes last week. of these students, 11 received awards
Oxana [17]

Answer: 16 students receive passing grades out of those 16 , 11 Students receive perfect math & 8 perfect spelling

8 is you answer

Draw 16 circles that would rep the students

Count up to 11 with 1 mark in each bubble that would rep the perfect math

Then count 8 and put 1 Mark in the Bubble and you'll see that 8 Students Received 2 Awards

Step-by-step explanation:

8 0
3 years ago
Which expression is equivalent to 6t⁻⁷x 3 t⁵
aleksandrvk [35]
6t^-7 * 3t^5 = 1/6t^7 * 3t^5
6 0
2 years ago
I need help please. The question is already there. Tysm. 20 points.
Bess [88]

Answer:

$109 and 35%

Step-by-step explanation:

49.05 is the sale price and the discount is 55%. What’s the original price?

price/ 1- discount

49.05/ 1 - 0.55

49.05/ 0.45

109

for the other part

to find the discount subtract final price from original price

94 - 61.10 = 32.9

Which would be 35% in percent form.

5 0
2 years ago
Someone please do this one for me !!!!
oee [108]

Answer:

Plot the points in black and connect them.

Plot the point in blue and count up 3 and to the right 1. Plot and connect the points.

Step-by-step explanation:

Using your cursor/mouse, you will first choose the color black. Then you will plot the points given to you (2,2) and (5,8) by first finding the x-coordinate of (x,y). Start at 2 on the x-axis. Follow the grid line up two units so you will also be at the 2 on the y-axis. Plot or draw a dot/circle on this grid line. Go back to the x-axis and start again at 5 on the x-axis. Follow the grid line up eight units so you will also be at the 8 on the y-axis. Plot or draw a dot/circle on this grid line. Connect the dots for your line.

Using your cursor/mouse, you will choose the color blue. Then you will plot the point given to you (10,5) by first finding the x-coordinate of (x,y). Start at 10 on the x-axis. Follow the grid line up five units so you will also be at the 5 on the y-axis. Plot or draw a dot/circle on this grid line. Instead of plotting another point. This time you will count from the blue point up three units and over to the right one. Mark this grid line as a point. Now connect them.

6 0
3 years ago
A right triangle has leg lengths of 10 cm and 12 cm. Which of the following is an acute angle in that right triangle?
makkiz [27]

Answer:

a + b + c= 90

30+30+30=90

90=90.

30 is the ans

3 0
2 years ago
Read 2 more answers
Other questions:
  • How many different types of cross sections of a cone are possible?. A. 3. B. 5. C. 6. D. 10
    12·1 answer
  • Please help with this is important!
    7·1 answer
  • Cameron and his family were eating leftover lasagna. There was 1/2 of the lasagna left. Cameron has one brother, one sister, and
    7·2 answers
  • Sheri is making 4 pounds of mixed nuts. She will use 1/3 the amount of macadamia nuts as she does almonds.
    8·2 answers
  • Use fraction strips to write 2 4/5 as an equivalent improper fraction.
    8·1 answer
  • Debbie ate 1/8 of a large brownie. Julian ate 1/2 of a small brownie. Julian says, "I ate more brownies than you because 1/2>
    13·2 answers
  • If someone answers you'll make my day :)
    6·2 answers
  • Given the function g(x)=x3−x,<br> what is the value of g(3)?
    13·2 answers
  • Can sumone please help with this. Its super late and I need help
    11·1 answer
  • Which is equivalent to a+(-a)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!