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Setler [38]
2 years ago
8

What is the area of a rectangle? Pls help and I will mark brainliest!

Mathematics
1 answer:
Alchen [17]2 years ago
7 0

Answer:

  • A. 168 units²

Step-by-step explanation:

<u>Find the missing side of the rectangle, use Pythagorean:</u>

  • b² = 25² - 7² = 576
  • b = √576 = 24 units

<u>Find area of rectangle:</u>

  • A = ab
  • A = 7*24 = 168 units²

Correct choice is A

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Drag the tiles to the correct boxes to complete the pairs.
erastova [34]

Answer:

√8 ==> 2 units, 2 units

√7 ==> √5 units, √2 units

√5 ==> 1 unit, 2 units

3 ==> >2 units, √5 units

Step-by-step explanation:

To determine which pair of legs that matches a hypotenuse length to create a right triangle, recall the Pythagorean theorem, which holds that, for a right angle triangle, the square of the hypotenuse (c²) = the sum of the square of each leg length (a² + b²)

Using c² = a² + b², let's find the hypotenuse length for each given pairs of leg.

=>√5 units, √2 units

c² = (√5)² + (√2)²

c² = 5 + 2 = 7

c = √7

The hypothenuse length that matches √5 units, √2 units is √7

=>√3 units, 4 units

c² = (√3)² + (4)²

c² = 3 + 16 = 19

c = √19

This given pair of legs doesn't match any given hypotenuse length

=>2 units, √5 units

c² = (2)² + (√5)²

c² = 4 + 5 = 9

c = √9 = 3

legs 2 units, and √5 units matche hypotenuse length of 3

=>2 units, 2 units

c² = 2² + 2² = 4 + 4

c² = 8

c = √8

Legs 2 units, and 2 units matche hypotenuse length of √8

=> 1 unit, 2 units

c² = 1² + 2² = 1 + 4

c² = 5

c = √5

Leg lengths, 1 unit and 2 units match the hypotenuse length, √5

3 0
3 years ago
A triangle has sides with lengths of 7 feet, 15 feet, and 17 feet. is it a right triangle?
aksik [14]
To test if this is a right triangle, let's test these side lengths with the Pythagorean Theorem.

a^2 + b^2 = c^2

c is the hypotenuse, the longest side of a right triangle.
a and b are the legs of the right triangle.

a = 7
b = 15
c = 17

7^2 + 15^2 = 17^2 ?

49 + 225 = 289 ?

274 ≠ 289

Thus, this triangle is not a right triangle since it does not satisfy the Pythagorean Theorem.

Have an awesome day! :)
8 0
3 years ago
What is the following product?
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The answer is 98-40 square root 6
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The number of students in the tutoring center was recorded for 42 randomly selected times. The data is summarized in the frequen
Licemer1 [7]

The class width for this Frequency Distribution Table is 5.

<h3>What is the class width?</h3>

The class width is the difference between the upper boundary and the lower boundary of the class.

The class width  = upper boundary - lower boundary

5 - 0 = 5

To learn more about Frequency tables, please check: brainly.com/question/27344444

#SPJ1

8 0
2 years ago
Divide nine by three, then subtract two double the results
Nuetrik [128]

Answer:

2

Step-by-step explanation:

hope this helps

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