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
Grace [21]
3 years ago
7

What is the LATERAL surface area of the rectangular pyramid below???

Mathematics
2 answers:
kherson [118]3 years ago
5 0

684 ft²

Area of rectangle :-

A = 18 ft * 20ft

A = 360 ft²

Area of 2 triangles :-

A = 2 * 8ft * 18 ft * 1/2

A = 144 ft²

Area of 2 triangles :-

A = 2 * 1/2 * 9ft * 20ft

A = 180 ft²

Total Area :-

A = ( 360 + 144 + 180 ) ft²

A = 684 ft²

emmasim [6.3K]3 years ago
4 0

Answer:

684 sq.ft

Step-by-step explanation:

(1) The base area of the pyramid is 18x20=360 sq.ft

(2) The Triangles of the pyramid:

  1. There are two kinds of the triangles.

  2. Smaller one: 18x8/2 (base times height divide 2)=72 sq.ft

  3. Bigger one: 20x9/2=90 sq.ft

  4. There are two of them so 72+72+90+90=324 sq.ft

And so 360+324=684 sq.ft.

You might be interested in
K=6x+10, solve for k
kicyunya [14]

Answer:

x=(10-k)÷6

Step-by-step explanation:

6x=10-k

x=(10-k)÷6

4 0
3 years ago
1.5 as a mixed number and 1.5 as a improper fraction
sergey [27]
1.5 as a mixed muber is 1 and 1/2, as an improper fraction it could be 3/2
5 0
3 years ago
Read 2 more answers
Plz i need this asap, if you do not know all of them, plz do not answer
Lelechka [254]
1. sqrt 52 = 7.211 rounds to 7

2. irrational number

3. sqrt 441 = 21....rational

4. 12^2 + 3^2 = h^2
    144 + 9 = h^2
     153 = h^2
      sqrt 153 = h
      12.4 = h <===

5. 6^2 + b^2 = 18^2
    36 + b^2 = 324
    b^2 = 324 - 36
    b^2 = 288
    b = sqrt 288
    b = 16.97 rounds to 17 <==

6. 39^2 + 52^2 = c^2
    1521 + 2704 = c^2
    4225 = c^2
    sqrt 4225 = c
    65 = c
    (39 + 52) - 65 = 91 - 65 = 26 miles shorter <==

7. 4^2 + b^2 = 16^2
     16 + b^2 = 256
     b^2 = 256 - 16
     b^2 = 240
     b = sqrt 240
     b = 15.49 rounds to 15.5 <==

8. ?
8 0
3 years ago
The sum of the first three terms of geometric sequence is 14. If the first term is 2, find the possible values of the sum of the
Irina18 [472]

Geometric series are in the form of

a +a*r +a*r^2+...

Where a is the first term and r is the common ratio .

And it is given that

2 +2*r +2*r^2=14

2r^2+2r-12=0

r^2 +r-6=0

(r+3)(r-2)=0

r=-3,2

So the first five terms are

2+2(-3)+2(-3)^2+2(-3)^3+2(-3)^4  or 2+2(2)+2(2)^2+2(2)^3+2(2)^4

= 2-6+18-54+162 or 2+4+8+16+32

= 122 or 62

4 0
3 years ago
Read 2 more answers
Someone help I don’t understand
Rina8888 [55]

Answer:

a)C

b)E

Step-by-step explanation:

a) You have to pick a vowel. There are three vowels and a total of 6 letters so it is 3/6 so the answer is C

b) Picking a card that is not T. None of the 6 letters are T so the probablity of picking a card with no T is 1. So the answer is E.

4 0
3 years ago
Other questions:
  • The frequency of the red eyes (p allele) in fruit flies is 63% what is the frequency of the white eye allele (9 allele)?
    14·1 answer
  • If csc x° = 5/4, what is the value of b?
    15·2 answers
  • Bayes' rule can be used to identify and filter spam emails and text messages. This question refers to a large collection of real
    7·1 answer
  • Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x) = e−4x, [0, 2] Yes, it does not m
    15·1 answer
  • 1 Apply Malcolm is making chicken rice soup. The recipe calls for 5 cups of chicken broth per cup of brown rice. How many cups o
    9·2 answers
  • Carlos walked to school on 14 of the 20 school days in February. Which value is equivalent to the fraction of the school days in
    5·2 answers
  • 7m - 3 + 6k<br> what is the coefficient of the third term in this expression
    6·1 answer
  • I don’t understand this at all someone help me
    12·1 answer
  • How do i find these in surface area with work??
    9·1 answer
  • Claire tried to evaluate an expression step by step.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!