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
Whitepunk [10]
3 years ago
10

The longer diagonal of a right trapezoid is 13 cm. The longer base is 12 cm. Find the area of the trapezoid if the shorter base

is 8 cm.
Mathematics
1 answer:
topjm [15]3 years ago
5 0
Draw a diagram of a right trapezoid . 
<span>B ---------------- C </span>
<span>.| ............ ............ * </span>
<span>.| ............ ............ ..... * </span>
<span>A --------------- -------------- D </span>
<span>Longer diagnal BD = 13cm </span>
<span>Longer base AD = 12cm </span>
<span>Shorter base BC = 8cm </span>
<span>Angle A is 90° , so △BAD is a right triangle . </span>
<span>AB^2 + AD^2 = BD^2 </span>
<span>AB^2 + 12^2 = 13^2 </span>
<span>AB^2 + 144 = 169 </span>
<span>AB^2 = 25 </span>
<span>AB = 5 </span>
<span>So the area of trapezoid ABCD is (12+8)*5/2 = 50 [cm^2] .</span>
You might be interested in
if $6700 is invested at 4.6% interest compounded semiannually, how much will the investment be worth in 15 years???
ella [17]
6700(1+ \frac{4.6}{100} )^{15}

6 0
3 years ago
Read 2 more answers
Help me with problems 13 ,14 and 15
Tamiku [17]
|2.5| because 2 and 1/2 are also 2.5 written in decimal, and the absolute value is always positive
8 0
3 years ago
Enforce is to impose as fued is to
jenyasd209 [6]
The reasonable answer should be Dispute. 
8 0
3 years ago
2. On Monday, I bought 3 dogs and 5 cats for a total cost of $8.25. On Tuesday, I bought 3 dogs and 6 cats for a total cost of $
Ratling [72]
I don’t know if you need to round, but you can do so on the answer for mondays if necessary

On Monday, the animals cost $1.03125.
On Tuesday, the animals cost exactly $1.
7 0
3 years ago
Previous
Natali5045456 [20]

Answer: y = 5d + 7 / c - 3

Step-by-step explanation:

Step 1: Add -3y to both sides

cy - 7 + -3y = 5d + 3y + -3y

= cy - 3y - 7 = 5d

Step 2: Now, add 7 on both sides

cy - 3y - 7 +7 = 5d +7

= cy - 3y = 5d +7

Step 3: Factor out y

y(c - 3) = 5d + 7

Step 4: Divide both sides by c-3

y(c - 3) / c - 3 = 5d+7 / c-3

Your answer for this should be

y = 5d + 7 / c - 3

Hope this helped!

3 0
3 years ago
Other questions:
  • I need help please my marking period end tomorrow
    8·1 answer
  • Jennifer receives $100 and puts it into her savings account. She adds $0.25 to the account each day for a number of days, d, aft
    8·2 answers
  • The equation of a line is y=-3x - 2. What are the slope and the y-intercept of the line?
    15·1 answer
  • Geometry question help me
    13·1 answer
  • How to find the missing length?
    7·2 answers
  • Brine is a solution of salt and water. If a tub contains 50 pounds of 5% solution of brine, how much water (to the nearest tenth
    7·1 answer
  • A road map has a scale of 1: 30 000
    10·2 answers
  • F=(2xy +z³)i + x³j + 3xz²k find a scalar potential and work done in moving an object in the field from (1,-2,1) to (3,1,4)​
    15·1 answer
  • How do you learn Vertex. Help me please
    6·1 answer
  • A company has two manufacturing plants with daily production levels of 5x+17 items and 3x - 4
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!