Geometry Questions and answer Practice Question and Answer
8 Q: O is the orthocentre of ΔABC. If ∠BOC=110°, ∠BAC is equal to
1106 060069394da571525629f91b2
60069394da571525629f91b2- 190°false
- 270°true
- 380°false
- 4110°false
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Answer : 2. "70°"
Q: If the circumradius of an equilateral triangle ABC is 8 cm, then what is the height of the triangle?
1105 06321c2b63169cb1b156878ee
6321c2b63169cb1b156878ee- 116 cmfalse
- 26 cmfalse
- 38 cmfalse
- 412 cmtrue
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Answer : 4. "12 cm"
Q: In ΔABC, AB=c cm, AC= b cm and CB=a cm, If ∠A=2 ∠B, then which of the following is true?
1103 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: The largest and the second largest angles of a triangle are in the ratio of 3 : 2 respectively. The smallest angle is 20% of the sum of the rest two angles. What is the sum of the smallest and the second largest angles?
1102 060990cb9f738a51c29aa1f1e
60990cb9f738a51c29aa1f1e- 180°false
- 260°false
- 3100°false
- 490°true
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Answer : 4. " 90°"
Q: X and Y are centres of circles of radius 9 cm. and 2 cm respectively XY=17 cm. Z is the centre of a circle of radius r cm which touches the above circles externally. Given that - ∠xzy = 90o the value of r is -
1097 060532a174999e13f2a6d2c2f
60532a174999e13f2a6d2c2f- 113 cmfalse
- 26 cmtrue
- 39 cmfalse
- 48 cmfalse
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Answer : 2. "6 cm"
Q: Find the second diagonal of a rhombus when it’s first diagonal length is 12 cm and its side is 10 cm?
1094 05f154c1b4cff381d16262119
5f154c1b4cff381d16262119- 124 cmfalse
- 216 cmtrue
- 318 cmfalse
- 422 cmfalse
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Answer : 2. "16 cm"
Q: ΔABC is similar to ΔDEF. Length of AB is 18 cm and length of the corresponding side DE is 10 cm. What is the ratio of Perimeter of ΔABC : Perimeter of ΔDEF?
1093 05f0e768ddcdb5f61f5c2f85c
5f0e768ddcdb5f61f5c2f85c- 15:9false
- 281:25false
- 39:5true
- 425:81false
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Answer : 3. "9:5 "
Q: P and Q are center of two circles with radii 9 cm and 2 cm respectively, where PQ = 17 cm, R is the center of another circle of radius x cm, which touches each of the above two circles externally. If ∠PRQ = 90 °, then the value of x is
1090 05efeae637228dd6b06e74887
5efeae637228dd6b06e74887- 17 cmfalse
- 28 cmfalse
- 34 cmfalse
- 46 cmtrue
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