# Triangles and Circles (IMO- Mathematics Olympiad (SOF) Class 9): Questions 74 - 78 of 79

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## Question number: 74

» Triangles and Circles

MCQ▾

### Question

In an isosceles triangle ABC, with , the bisectors of and intersect each other at O. join A to O, then________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 75

» Triangles and Circles

MCQ▾

### Question

In the adjoining figure, , then is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 76

» Triangles and Circles

MCQ▾

### Question

The locus of a point equidistant from the three sides of a triangle is ________

### Choices

Choice (4) Response

a.

Circumcenter

b.

Centroid

c.

Incenter

d.

Orthocenter

## Question number: 77

» Triangles and Circles

MCQ▾

### Question

The and are right angles. If , and , then the length of XZ is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 78

» Triangles and Circles

MCQ▾

### Question

In the figure , and . Then x equals ________

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page