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QveST [7]
3 years ago
7

A triangle has side lengths of 15, 20, and 25. What type of triangle is it?

Mathematics
2 answers:
Mrac [35]3 years ago
6 0

Answer:

The answer is a. right.

Step-by-step explanation:

GIVEN:

hypo=25

opposite and adjacent=15 and 20.

FORMULA:

hypotenuse^2 =opposite side^2 + adjacent side^2

25^2=15^2+20^2

625=225+400

400+225=625

(Got this from yahoo answers, everybody said right.)

Vinvika [58]3 years ago
3 0

Acute triangle is the answer

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Step-by-step explanation:

Starting at the same point at the same time, Samuel and Heather rode their bikes in the same direction

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  • After 3.5 h Samuel stopped for a half-hour break, but Heather kept going
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We need to find how fast each was going

Assume that Heather's speed is x km/h

∵ Heather's speed = x km/h

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∴ Samuel's speed = x + 3 km/h

The formula of the distance is distance = speed × time

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- Find the distance that Samuel traveled in 3.5 h

∴ Samuel distance = (x + 3) × 3.5

- Multiply the bracket by 3.5 to simplify

∴ Samuel distance = 3.5x + 10.5

∵ Samuel took a break for half hour

∵ Heather kept going

∵ At the end of the break, Heather was 8 km ahead of Samuel

- That means Heather was going for 4 hours (3.5 + 0.5), and her

   distance is longer than Samuel distance by 8 km

∴ Heather distance = x × 4 = 4x

- Subtract the distance of Samuel from the distance of Heather

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∵ 4x - (3x + 10.5) = 8

∴ 4x - 3x - 10.5 = 8

- Add the like terms in the left hand side

∴ 0.5x - 10.5 = 8

- Add 10.5 to both sides

∴ 0.5x = 18.5

- Divide both sides by 0.5

∴ x = 37

∵ x represents Heather's speed

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∵ x + 3 represents Samuel's speed

∴ Samuel's speed = 37 + 3 = 40 km/h

Samuel was going with 40 km/h and Heather was going with 37 km/h

Learn more:

You can learn more about the equation of motion in brainly.com/question/568302

#LearnwithBrainly

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