Which number sentence is true?

Mathematics

1 answer:

aliya0001 [1]2 years ago

3 0

The answer is A) 1,73<2,1

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Geometry - Triangle d) In the given figure, BE = EC and CE is the bisector of ZACB. Prove that ZBEC = ZACD. E B D С

Llana [10]

Answer:

Let m∠BCE = x

Then m∠ACE = x as well since CE is bisecting ∠ACB.

m∠ACD + x + x = 180° ⇒
m∠ACD = 180° - 2x

Consider ΔBEC

Since BE = EC, the opposite angles are congruent:

∠BCE ≅ ∠CBE

Then:

m∠CBE = m∠BCE = x

Find the angle BEC:

m∠BEC = 180° - (x + x) = 180° - 2x

Comparing the above we see that:

m∠BEC = m∠ACD
proved

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2 years ago

9+4 third power x (20 -8) divided by 2+6

konstantin123 [22]

Answer: 253.5

9+4=13
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13 to the third power = 169
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20-8= 12
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2+6=8
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169 x 12 = 2028
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2028/8 = 253.5

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3 years ago

Jordan invests £17200 into his bank account.

timurjin [86]

Hope this will help u...