Triangles and Circles [IMO Level 1- Mathematics Olympiad (SOF) Class 9]: Questions 61 - 66 of 79

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Question 61

Question MCQ▾

The area of a quadrilateral, one of whose diagonals is 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 62

Question MCQ▾

DEF is an equilateral triangle of side . S, T and U are midpoints of DE, EF and DF respectively. The area of triangle STU is ________

Given the DEF is an Equilateral Triangle of Side 12 Cm

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 63

Question MCQ▾

The sides BC, CA and AB of are produces in order to form exterior angles and , then is ________

Given the Sides BC, CA and AB of Triangle ABC

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 64

Question MCQ▾

In the medians PS, QT and RU pass through O. if , and then OS is ________

In Triangle PQR, the Medians PS, QT and RU Pass through O

Choices

Choice (4)Response

a.

2.5

b.

2.6

c.

2.3

d.

2.9

Edit

Question 65

Question MCQ▾

PQRS is a cyclic Quadrilateral whose diagonals intersect at a point E. If , , , then = ________

PQRS is a Cyclic Quadrilateral and Intersect at a Point E

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Choice (4)Response

a.

b.

c.

d.

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Question 66

Question MCQ▾

O, P, Q and R are four points on a circle. OQ and PR intersect at a point S such that and , then angle is ________

Given the O , P, Q and R Are Four Points on a Circle

Choices

Choice (4)Response

a.

b.

c.

d.

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