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puteri [66]
3 years ago
11

The length of a side of an equilateral triangle is 40cm. what is the length of the altitude of the triangle?

Mathematics
1 answer:
podryga [215]3 years ago
4 0

Answer:

20√3 cm

Step-by-step explanation:

Altitude of an equilateral triangle splits it into 2 equal right triangles, it bisects the base and the angle opposite to the base.

<u>Let the altitude be x. Then as per Pythagorean theorem:</u>

  • x² = 40² - (40/2)²
  • x²= 1600 -400
  • x²= 1200
  • x= √1200
  • x= 20√3 cm

<u>Correct choice is</u> the second one

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2x + 7 + 6x - x what is equivalent to
Anna007 [38]

Answer:

x=1

Step-by-step explanation:

2x+6x-x=7

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5 0
3 years ago
Determine whether the following function is linear or quadratic. Identify the quadratic, linear, and constant terms. f(x)=3x(x−1
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3 years ago
Read 2 more answers
Show your smartness by answering the questions! First one to answer gets Brainlest!
shusha [124]

Answer:

3.56*10^13

Step-by-step explanation:

8.9* 10^4  * 4*10^8

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3 0
3 years ago
Pls help I’ve already tried 3/11 but it says it wrong
love history [14]

Answer:

12

Step-by-step explanation:

Alr so correct me if I'm wrong but I think you made a mistake. It says find 44 of those rectangles. You found just 1 in that case which the area is 3/11. You have to do 3/11 X 44 which is

3/11 x 44/1 = 132/11 = 12.

As I said, correct me if I'm wrong.

Hope this Helps!

5 0
3 years ago
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