Geometry Questions and answer Practice Question and Answer
8 Q: The sum of all interior angles of a regular polygon is twice the sum of all its exterior angles. The number of sides of the polygon is
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5f40dc1954900c5349e9c83b- 16true
- 28false
- 312false
- 410false
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Answer : 1. "6"
Q: In a triangle ΔABC, the sides DE parallel to BC and AD = 6 cm, DB = 9 cm, AE = 8 cm, find the value of AC.
1400 05f75907b4637db73283dd1c2
5f75907b4637db73283dd1c2- 18 cmfalse
- 212 cmfalse
- 320 cmtrue
- 46 cmfalse
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Answer : 3. "20 cm"
Q: Triangle PQR is such that PQ=9 cm, QR=6 cm, PR=7.5 cm and triangle PQR is similar to triangle XYZ. If XY=18 cm, find the value of YZ.
1395 0606ece8f0d3bb27a2067bb3b
606ece8f0d3bb27a2067bb3b- 115 cmfalse
- 218 cmfalse
- 312 cmtrue
- 49 cmfalse
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Answer : 3. "12 cm"
Q: If the circumcenter of the triangle lies outside it, then the triangle is
1391 05efe8c18d4461c5b47dc9f66
5efe8c18d4461c5b47dc9f66- 1Right angledfalse
- 2Obtuse angletrue
- 3Equilateralfalse
- 4Acute angledfalse
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Answer : 2. "Obtuse angle"
Q: ΔABC and ΔDBC are on the same base BC but on opposite sides of it. AD and BC intersect each other O. If AO=a cm, DO=b cm and the area of ΔABC= x cm2, then what is the area (in cm2) of ΔDBC?
1387 05f40dd439b782961da3f49dd
5f40dd439b782961da3f49dd- 1$${ab\over 2}{x}$$false
- 2$${a\over b}{x}$$false
- 3$${b\over a}{x}$$true
- 4$${a+b\over2}{x}$$false
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Answer : 3. "$${b\over a}{x}$$"
Q: In ΔABC, AB=c cm, AC= b cm and CB=a cm, If ∠A=2 ∠B, then which of the following is true?
1382 06051c698a37d522d6c151f0f
6051c698a37d522d6c151f0f- 1$$ {a^{2}=b^{2}-bc}$$false
- 2$$ {a^{2}=b^{2}-ac}$$false
- 3$$ {a^{2}=b^{2}+bc}$$true
- 4$$ {a^{2}=b^{2}+ac}$$false
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Answer : 3. "$$ {a^{2}=b^{2}+bc}$$"
Q: In △PQR, ∠P = 90°. S and T are the mid points of sides PR and PQ, respectively. What is the value of RQ2/(QS2+ RT2)?
1381 064d1f0a8a798377447183d9e
64d1f0a8a798377447183d9e- 1$$3\over 4$$false
- 2$$4\over 5$$true
- 3$$1\over 2$$false
- 4$$2\over 3$$false
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Answer : 2. "$$4\over 5$$"
Q: In ΔABC, ∠C=90° and CD is perpendicular to AB at D. If AD/BD=$$ {\sqrt{k}}$$, then AC/BC=?
1378 05fbf799f90530f6255a17d41
5fbf799f90530f6255a17d41- 1$$ {\sqrt{k}}$$false
- 2$$ {1\over{\sqrt{k}}}$$false
- 3$$ {^4\sqrt{k}}$$true
- 4kfalse
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