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nignag [31]
3 years ago
5

Sebuah tangga yang panjangnya 5m bersandar pada dinding rumah. Tinggi dinding yang di capai tangga tersebut adalah 3,5m, jarak u

jung bawah tangga terhadap dinding?

Mathematics
1 answer:
timofeeve [1]3 years ago
3 0

Answer:

x≅3.57m

Step-by-step explanation:

Kami menerapkan teorema kaki

a^{2}+b^{2}=c^{2}\\   mengganti\\x^{2}+(3.5)^{2}=5^{2}\\x^{2}=5^{2}-(3.5)^{2}\\x^{2}=25-12.25\\x=\sqrt{25-12.25}=3.57m

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GrogVix [38]

Given:

m \angle A B D=96^{\circ}

m \angle 2 =m \angle 1+ 26^{\circ}

To find:

m \angle 1

Solution:

m \angle DBC+ m \angle CBA = m \angle ABD

m \angle 1+ m \angle 2 = m \angle ABD

Substitute m \angle 2 =m \angle 1+ 26^{\circ}.

m \angle 1+ m \angle 1 + 26^\circ = 96^\circ

2m \angle 1+ 26^\circ = 96^\circ

Subtract 26° from both sides.

2m \angle 1+ 26^\circ -26^\circ = 96^\circ -26^\circ

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m \angle 1=35^{\circ}

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4 years ago
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Solution:

<u>We know that:</u>

  • The base angles are equivalent.

<u>This means that:</u>

  • This triangle is an isosceles triangle.
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<em>Let's use Pythagoras theorem to find z.</em>

<u>Finding z using Pythagoras theorem.</u>

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