# NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 286 - 291 of 2000

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## Question number: 286

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MCQ▾

### Question

ABCD is a parallelogram in which and then = ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 287

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MCQ▾

### Question

The common end point of an angle is called

### Choices

Choice (4)Response

a.

Zero

b.

Vertex

c.

End point

d.

None of the above

## Question number: 288

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MCQ▾

### Question

A parallelogram which has equal diagonals is a ________.

### Choices

Choice (4)Response

a.

Rectangle

b.

Rhombus

c.

Trapezium

d.

Question does not provide sufficient data or is vague

## Question number: 289

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MCQ▾

### Question

The quadrilateral formed by joining the mid-points of the sides of a quadrilateral LMNO, taken in order, is a rectangle if

### Choices

Choice (4)Response

a.

LMNO is a parallelogram

b.

Diagonals of LMNO are perpendicular

c.

LMNO is a rectangle

d.

Diagonals of LMNO are equal

## Question number: 290

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MCQ▾

If and then

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 291

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MCQ▾

### Question

The angle ABC and BDC are right angles. If AD = 3 cm, DC = 4 cm and AB = 5 cm then the length of BD is

### Choices

Choice (4)Response

a.

6 cm

b.

8 cm

c.

4 cm

d.

5 cm

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