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The Sine Rule

Author: Math ELS
Description: Choose the correct answer :
Keywords: shicko, els, , , , , online teaching

Content:
Quiz:
1. In any Δ ABC a sinB = ..........
A) b sinA
B) c sinC
C) b sinC
D) a sinC

2. In Δ ABC a=10 cm , m(∠A)=45∘ and m(∠B)=60∘ , then b = .......... cm
A) 5√6
B) 11.2
C) 12
D) 13

3. in Δ ABC if m(∠A)=60° , m(∠B)=70° and c=7.8 cm , then a=......... cm
A) 8
B) 8.82
C) 8.1
D) 7.82

4. in Δ ABC if m(∠A)=60° , m(∠B)=70° and c=7.8 cm , then area of Δ ABC =......... cm²
A) 32
B) 32.32
C) 23
D) 23.23

5. in Δ ABC if m(∠B)=60° , c=6 cm and b=9 cm, then m(∠C)=............°
A) 35° 15’
B) 144° 44’
C) 35° 15’ and 144° 44’
D) none of the above

6. In any Δ ABC if a : b : c = 2 : 3 : 4 , then sinA : sinB : sinC = ..................
A) 2 : 3 : 4
B) 4 : 3 : 2
C) sin 2 : sin 3 : sin 4
D) sin 4 : sin 3 : sin 2

7. In any Δ ABC if a : b = 2 : 3 , b : c = 6 : 7 then sinA : sinB : sinC = ..................
A) 4 : 6 : 7
B) 2 : 3 : 7
C) 2 : 6 : 7
D) 4 : 3 : 7

8. In any Δ ABC if 2a = 3b = 4c ,then sinA : sinB : sinC = ..................
A) 6 : 4 : 3
B) 3 : 4 : 6
C) 2 : 3 : 4
D) 4 : 3 : 2

9. In Δ ABC , AB = 10 cm , m(∠A)=110° , m(∠C)=25°,then the longest side in Δ ABC is ........ = ........ cm
A) BC = 22.24 cm
B) AC = 16.73 cm
C) AC = 22.24 cm
D) BC = 16.73

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