IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 315 - 320 of 1042

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Question 315

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Question

MCQ▾

Four angles of a quadrilateral are in the ratio 3: 6: 9: 12. The smallest angle is________.

Choices

Choice (4)Response
a.20
b.10
c.36
d.50

Question 316

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Question

Match List-Ⅰ List-Ⅱ▾

Match the following.

List-Ⅰ (List of Geomertic Shapes)List-Ⅱ (Characteristic of Shapes)

(A)

Trapezoid

(i)

Diagonals are perpendicular

(B)

Rhombus

(ii)

Diagonals bisect each other

(C)

Parallelogram

(iii)

Diagonals are congruent

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
a.
  • (ii)
  • (iii)
  • (i)
b.
  • (iii)
  • (i)
  • (ii)
c.
  • (ii)
  • (i)
  • (iii)
d.All of the above

Question 317

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Question

MCQ▾

30 % of 140 = x% of 420, then the value of x is________.

Choices

Choice (4)Response
a.10
b.30
c.2
d.5

Question 318

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Question

MCQ▾

ABCD is rhombus and P is the point where its two diagonals meet, then if, then is________.

Choices

Choice (4)Response
a.120
b.50
c.40
d.30

Question 319

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Question

MCQ▾

30 % of 300 = x% of 150, then the value of x is________.

Choices

Choice (4)Response
a.50
b.30
c.60
d.10

Question 320

Edit

Question

MCQ▾

Given below steps of construct a quadrilateral PQRS where PQ = 5.0 cm, QR = 3.0 cm, RS = 4.2 cm, SP = 3.3 cm and which of the following is a wrong step?

(P) Step 1: Draw PQ = 5.0 cm and construct

(Q) Step 2: With P as center and radius SP = 3.3 cm, cut off SP = 3.3 cm along PX.

(R) Step 3: Join. With S as center and radius RS = 4.2 cm, draw an arc.

(S) Step 4: With Q as center and radius QR = 3.0 cm, draw an arc to cut the arc drawn in above step at R. Join QR, RS to obtain the required quadrilateral PQRS.

Choices

Choice (4)Response
a.R
b.p
c.S
d.Q