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emmasim [6.3K]
2 years ago
9

AOC and BOD are diameters of a circle, centre O. Angles BAD and CDA are 90°. Prove that triangle AND and triangle DCA are congru

ent
Please help me, i have a test tomorrow and i am confused ⭐️

Mathematics
1 answer:
ololo11 [35]2 years ago
5 0

Answer:

By using SAS which stands for Side, Angle, Side.

Step-by-step explanation:

This means that if we have two angles and side measures that are equal to the corresponding angles and side measures of the other triangle then they are congruent.

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FIND THE FOLLOWING QUOTIENT -56/-8. Is there a quotient or is it undefined??
AVprozaik [17]
There's a quotient; it is 7.
7 0
3 years ago
Dr black is standing 13 feet from a streetlamp. The lamp is making his shadow 9 feet long. He estimates that the angle of elevat
natta225 [31]

Dr black is standing 13 feet from a streetlamp. The lamp is making his shadow 9 feet long. He estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 50° to the nearest foot the streetlamp is about  26 feet tall.

I hope this helps!

4 0
3 years ago
Pls explain how to do this will give brainliest to best answer
Delicious77 [7]

Answer:

1st Graph:

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5 0
3 years ago
the results of a poll indicate that between 33% and 37% of the population of a town visit the library at least once a year. what
Vera_Pavlovna [14]

The margin of error is ±2%

<h3>What is Margin error?</h3>

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So,

y-x =33%

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Hence, the margin of error is ±2%.

Learn more about this concept here:

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6 0
2 years ago
Which statement about the value of x is true?
Anarel [89]
The best way to find the answer is to solve for x. To start you would add 38 and 39, getting 77, then subtract that from 180 to get the last angle in the triangle, 103. Finally, you would subtract 103 from 180, getting 77, to get x. The only thing you need to do now is to look at all of the answers and figure out which one makes sense for the answer you got. You know it can't be x<77 because it doesn't have the or equal to sign. You know it can't be x>103 because 77 is lower than 103. You know it can't be x<39 because 77 is greater than 39, so the answer has to be x > 38.
4 0
3 years ago
Read 2 more answers
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