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mart [117]
3 years ago
5

The perimeter of a square is 40cm.then area of a square is

Mathematics
1 answer:
quester [9]3 years ago
7 0

Answer:

100

Step-by-step explanation:

40/4 =10 which are the side and 10*10 =100 which is the area

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Help me pls. Due Today, I will MARK AS BRAINLIEST
Norma-Jean [14]

Answer:

CDA and BDA are the same

Step-by-step explanation:

4 0
2 years ago
two vertical cliffs are on opposite sides of a 90 foot wide river. From point A at the top of the shorter cliff, the angle of el
Sedbober [7]
Answer: The tall cliff is 118.20 feet tall and the short cliff is 70.32 feet tall.

If you draw a picture with 2 cliffs and a river in the middle, you have find 2 right triangles. In each triangle the adjacent side to our known angle is the river of 90 feet. And the unknown side is the opposite leg.

Therefore, we can set up a tangent equation.

From the top of the short cliff to the top of the tall cliff, we can right and solve the following trig equation:

tan(28) = x /90
x = 47.88

From the top of the short cliff to the bottom, we can right and solve the following trip equation.

tan(38) = x/90
x = 70.32

The 70.32 is also the height of the short cliff. And adding the two answers together will give you the height of the tall cliff.

5 0
3 years ago
What is 329,625 rounded to the place value of the underlined digit?
dexar [7]

Answer:

330,000

Step-by-step explanation:

if the underlined digit is 9, then the six rounds the 9 up to a 10, making the rounded number amount to 330,000.

4 0
2 years ago
Read 2 more answers
Find the volume of the pyramid
soldier1979 [14.2K]

Answer:

264 I believe

Step-by-step explanation:

5 0
3 years ago
A company that makes hair-care products had 2,000 people try a new shampoo. Of the 2,000 people, 4 had a mild allergic reaction.
bazaltina [42]

Answer:

0.2%

Step-by-step explanation:

2,000 people tested the new shampoo.

4 people had a mild allergic reaction.

4 is what percentage of 2,000?

0.2 percent.

(2,000 = %99.8)

4 0
2 years ago
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