# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 657 - 659 of 1022

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## Question number: 657

Edit
Match List-Ⅰ List-Ⅱ▾

### Question

Match the following.

 List-Ⅰ List-Ⅱ (A) Circumcenter (i) The point at which the three angle bisectors of a triangle meet (B) Incenter (ii) The point at which the medians of a triangle meet (C) Orthocenter (iii) The point of intersection of the perpendicular bisector of the sides of a triangle (D) Centroid (iv) The point at which the altitudes of a triangle meet

### Choices

Choice (4) Response
• (A)
• (B)
• (C)
• (D)

a.

• (i)
• (iii)
• (iv)
• (ii)

b.

• (iv)
• (i)
• (ii)
• (iii)

c.

• (ii)
• (iii)
• (iv)
• (i)

d.

• (iii)
• (i)
• (iv)
• (ii)

## Question number: 658

Edit
MCQ▾

### Question

The three angles of a triangle are in the ratio 1: 2: 1, then the greatest angle is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 659

Edit
MCQ▾

### Question

The figure below is not drawn to scale. Find .

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above