3 years ago

Number one and number two

1 answer:

6 0

The sum of the angles of an n-sided polygon is (n-2)×180°

For a 30-gon, it would be 28x180 = 5040, answer B

Second question is more of a trick question. Exterior angles always add up to 360. So answer H.

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Prove that ΔABC and ΔEDC are similar. triangles ABC and DEC where angles A and E are right angles, AC equals 4, AB equals 3, BC

nikklg [1K]

Answer:B

Step-by-step explanation:

4E and LA are right angles; therefore, these angles are congruent since all right

angles are congruent. Is - 15 over 5 and 12 over 4shows the corresponding sides are proportional;

therefore, ABC ~ AEDC by the SSS Similarity Postulate.

3 0

2 years ago

You want to convert 1 kg to milligrams. You already know that 1 kg equals 1000 g explain how knowing that 1 gram equals 1000 mg

butalik [34]

1 kg=1000g*1000mg/1g=1000000mg =10⁶ mg
or you can use proportion

1000g - x mg
1 g -1000mg
x=1000*1000=1000000mg

1kg=10⁶ mg

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3 years ago

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At 2 hours before sunset, the temperature is 0°F. At 2 hours after sunset, the temperature is −4°F. Identify the slope, y-interc

Liula [17]

Answer

slope: 1

y-intercept: 0,–2

x-intercept: -2,0

Step-by-step explanation

I just did this question

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3 years ago

You are standing next to a really big circular lake. You want to measure the diameter of the lake, but you don't want to have to

Nuetrik [128]

The diameter would be 400 because one of the two formulas to find a circumference is C= pi (D) so according to ur information, the diameter would be 400

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2 years ago

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Is 3/8 greater than 3/12

ra1l [238]

3/8>3/12

Solve: The least common denominator is 24

Comparing 9/24 and 6/24:

9/24 > 6/24

therefore

3/8 > 3/12

6 0

2 years ago