All categories

2 years ago

I can’t figure this out I need the answer

Mathematics

1 answer:

fredd [130]2 years ago

7 0

Answer:

Area 2 = 72 cm²
CD = 7 cm

Step-by-step explanation:

For similar figures, side lengths (and any other linear measure) are proportional. Areas are proportional to the square of the scale factor for side lengths.

Perimeter 1/Perimeter 2 = CD/EF

21/18 = CD/6

CD = 6(21/18)

CD = 7 . . . cm

Area 2/Area 1 = (Perimeter 2/Perimeter 1)²

Area 2/98 = (18/21)²

Area 2 = 98(6/7)²

Area 2 = 72 . . . cm²

You might be interested in

Help me please with this question

Natalka [10]

9514 1404 393

Answer:

c. 3 to 4

Step-by-step explanation:

There are 3 oranges and 4 apples in the bowl, so the ratio is ...

oranges/apples = 3/4 or 3 to 4

8 0

2 years ago

Please help me!!!<br><br>-x + (−3) = x + 3

Sedbober [7]

Step-by-step explanation:

-x - 3 = x + 3

Solving like terms

-3 - 3 = x + x

-6 = 2x

-6 / 2 = x

-3 = x

8 0

3 years ago

Read 2 more answers

Can someone help with this question??

Step2247 [10]

Answer:

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

There are two drama classesoffered at a middle school. The 8th grade class has 13 fewer students than the 7th grade class. If th

Eddi Din [679]

Answer:

Class 8 has 27 and class 7 has 40

Step-by-step explanation:

8th (r) class has 13 fewer than 7th (x).
x -13 = r

Total for both classes = 67

r + x - 13 = 67
r + x = 80

80 divided by two = 40 (per class)

40 - 13 = 27

4 0

1 year ago

Question 1 (1 point)

salantis [7]

Blank 1: 1

Blank 2: 3

Blank 3: -2

3 0

2 years ago