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2 years ago

MathsWatch question:

Mathematics

1 answer:

Citrus2011 [14]2 years ago

7 0

Answer:

proving question

Step-by-step explanation:

The triangles have been drawn along with the circle and the figure is attached.

In ΔABD and ΔDCA

i) ∠ BAD = ∠ ADC = 90° [ Angle in a semicircle is always 90°]

ii) BD = AC [ both are diameters]

iii) AD = AD [ AD is a common side in both triangle]

Therefore, Δ ABD and ΔDCA are congruent to each other by RHS rule.

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3 years ago

If measure angle acd=70 then measure angle bcd=

FinnZ [79.3K]

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Step-by-step explanation:

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2 years ago

How do I do this <br> X+y=-4<br> 3x-6y=15

avanturin [10]

Answer:

x=-1, y=-3. (-1, -3).

Step-by-step explanation:

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3 years ago

Please help me with these problems; geometry is really getting on my nerves. T-T

ivolga24 [154]

For #19 part A :

By vertical angles and then same side interior angles 3x + 2x = 180
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For #19 part B:

You are correct with the 35, but you missed the fact that the 105 angle is supplementary with the unknown angle inside the triangle. So:

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180 = 35 + 75 + x
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Step-by-step explanation:

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