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stepladder [879]
3 years ago
9

Two statements are missing reasons. What reasons can be used to justify both statements 2 and 3 ?

Mathematics
2 answers:
nataly862011 [7]3 years ago
4 0

Answer:

See explanation

Step-by-step explanation:

The given circle has center O.

A, B,C, and D are points on the circumference of the circle.

We want to prove that: \angle A\cong \angle D

We need to join to B and C as shown in the attachment.

Recall that angle subtended by arc BC at the center is twice the angle subtended at the circumference by the same arc.

This implies that:

\angle O=2\angle A...(1)

\angle O=2\angle D...(2)

The LHS of equation (1) and (2) are equal. Therefore the RHS are also equal.

This implies that:

2\angle A=2\angle D

\therefore \angle A\cong \angle D

Alexxx [7]3 years ago
3 0

Answer:

Inscribed angles theorem

Step-by-step explanation:

Just took test on edg2020

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