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vladimir1956 [14]
3 years ago
13

Ind the area of a equilateral triangle (regular 3-gon) with the given measurement 6-in side. A=sq. In.

Mathematics
1 answer:
Zinaida [17]3 years ago
8 0
Can u be more detailed please??
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Pleaseee help answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!
Naya [18.7K]

Answer:

540

Step-by-step explanation:

(n-2)×180

(5-2)×180

3×180

540

5 0
2 years ago
The sides of an oblong are in the ratio of 4:3. The oblong has a length of 12 cm and is increased by a scale factor of 2.5. What
Aleksandr [31]

Answer:

If the scale factor is increased in 2.5, the increased width will be:

  • <u>22.5 cm</u>

Step-by-step explanation:

Remember that an oblong is longer than it is wide, by this reason, the ratio of 4:3 could mean, if we give a number, by each 4 cm in the length, there is 3 cm in the width, in this form, if the oblong has a length of 12 cm, the width is:

  • 4 cm ⇒ 3 cm
  • 12 cm ⇒ x

So:

  • x=\frac{12 *3}{4}
  • x=\frac{36}{4}
  • x=9

Then, the original width is 9 cm, as the scale factor must be increased 2.5, we can multiply the found width to obtain the increased width:

  • Increased width = 9 cm * 2.5
  • <u>Increased width = 22.5 cm</u>

As you can see, <u><em>the increased widt will be 22.5 cm</em></u>.

4 0
2 years ago
This is due soon can someone help me **asap**
natita [175]
The answer is d to the question
4 0
2 years ago
(GEOMETRY 100 POINTS)
Karo-lina-s [1.5K]

Answer:

1) They are similar

2) 45 ft

Step-by-step explanation:

1) similar because both triangles have congruent interior angles

2) 75/35 = AB/21

AB = 45 ft

5 0
2 years ago
Read 2 more answers
Determine the graph that has the following properties
uranmaximum [27]
A. but I would double check on that one first.
5 0
3 years ago
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