# Dat circle geo (1 Viewer)

#### Spiritual Being

##### hehehehehe
Circle geometry is about what you see.

Thankfully I saw it today.

Expecting 63/70 raw.

##### Member
+1 It's valid because you prove they're equal angles and THEN you state well since they're equal, they must be vertically opposite. Hence straight line.
Cool. Thanks.

#### superSAIyan2

##### Member
is this right? I dont think ive made any assumptions about QTP being straight

#### Menomaths

##### Exaı̸̸̸̸̸̸̸̸lted Member
Looks right.

Made my neck a bit sore though.
His neat writing compensated for it though.

#### Storm Red

##### New Member
I drew a line through Q, T and P, and proved that the two triangles (BQT and APT) are congruent (angles in the same segment and vert. opposite angles). And as they lie on the line, the points had to be collinear. Hope its right

#### RealiseNothing

##### what is that?It is Cowpea
I drew a line through Q, T and P, and proved that the two triangles (BQT and APT) are congruent (angles in the same segment and vert. opposite angles). And as they lie on the line, the points had to be collinear. Hope its right
The triangles aren't congruent. Unless you mean similar, which assumes the result.

#### superSAIyan2

##### Member
His neat writing compensated for it though.
Thanks!! And thanks to others for verifying my answer

#### pHyRe

##### Active Member
reckon you'd get a mark for doing it by assuming it was a straight line for stating alternate angles on the one that is given as a line?