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
dmitriy555 [2]
3 years ago
13

The expression \dfrac12bh 21​ bhstart fraction, 1, divided by, 2, end fraction, b, h gives the area of a triangle where bbb is t

he base of the triangle and hhh is the height of the triangle.What is the area of a triangle with a base of 7 \text{ cm}7 cm7, space, c, m and a height of 4 \text{ cm}4 cm4, space, c, m? \text{ cm}^2 cm 2
Mathematics
2 answers:
drek231 [11]3 years ago
6 0
For this case, the first thing we must do is use the given expression.
 We have then:
 A = (1/2) * (b) * (h)
 Substituting the values:
 A = (1/2) * (7) * (4)
 A = 14cm ^ 2
 Answer:
 the area of a triangle with a base of 7 cm and a height of 4 cm is:
 A = 14cm ^ 2
lara31 [8.8K]3 years ago
3 0

Answer:

14

Step-by-step explanation:

You might be interested in
What is the surface area of a sphere with a diameter of 8 mm?<br> Use 3.14 for π .
Rudik [331]

Answer:

Step-by-step explanation:

804.25mm

8 0
3 years ago
Find the area of the trapezoid.
irga5000 [103]

Answer:

The area of this trapezoid is 28 square meters

Step-by-step explanation:

A=a+b /2 h

7 0
3 years ago
Solve using elimination. –8x + 6y = –16 –8x + 9y = 8
stira [4]
I think this is right

5 0
3 years ago
Anyone know the answer ?
vodomira [7]
Hello
Rational Numbers
7 0
3 years ago
Please help me , at least do one and explain it please .
Len [333]

9514 1404 393

Answer:

  1. 113.0 cm²
  2. 2464.0 in²
  3. 95.0 ft²

Step-by-step explanation:

1. The area of a circle is given by the formula ...

  A = πr² . . . . . where r is the radius

The radius is shown as 6 cm, so the area is ...

  A = (3.14)(6 cm)² = 113.0 cm²

__

2. The radius is shown as 28 in. We note that this is a number divisible by 7, so we choose 22/7 for π.

  A = (22/7)(28 in)² = 2464 in² . . . . see comment

__

3. The radius is half the diameter, so is 11/2 = 5.5 ft. Then the area is ...

  A = (3.14)(5.5 ft)² = 95.0 ft²

_____

<em>Additional comment</em>

If you use a more exact value of π for problem 2, the area is 2463.0 in². If you use 3.14 as the value of π, the area rounds to 2461.8 in². For these values of pi (3.14 or 22/7), the answer is only good to about 3 significant digits. 2464 has more significant digits, so digits beyond the first 3 may be in error.

7 0
3 years ago
Other questions:
  • Which of the following parabolas opens down?
    5·1 answer
  • What is the domain of the function?
    6·1 answer
  • Find the volume of a frustum of a right pyramid whose lower base is a square with a side 5 in. and whose upper base is a square
    8·1 answer
  • Which graph is represents the function f(x)=3x-2/x-2
    11·1 answer
  • Multiply 5(−37). Simplify your answer.
    5·2 answers
  • Which is more heavy a pound of bricks or a pound of feathers​
    15·1 answer
  • What's the area of this
    8·1 answer
  • Nicola has y marbles Sean has 25 marbles Vicky has 10 marbles a) write an expression for the total number of marbles they have b
    15·1 answer
  • Fine the geometric mean of 6 and 48 and simplify the radical.
    13·1 answer
  • Three-fifths of the members of the Spanish club are girls. There are a total of 30 girls in the Spanish club. Which statements c
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!