Test:
Triangles - Challenging
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Question 1:
Find
$\alpha $
A
$\alpha ={75}^{\circ}$
B
$\alpha ={80}^{\circ}$
C
$\alpha ={60}^{\circ}$
D
$\alpha ={90}^{\circ}$
Question 2:
Find the height of a triangle where
$a=6cm$
A
$\sqrt{6}$
B
$3\sqrt{2}$
C
$3$
D
$3\sqrt{3}$
Question 3:
Find the area:
A
$20c{m}^{2}$
B
$22.5c{m}^{2}$
C
$25c{m}^{2}$
D
$17.5c{m}^{2}$
Question 4:
Which set of numbers is the side lengths of a triangle?
A
$2\sqrt{3},3\sqrt{2},\sqrt{7}$
B
$\sqrt{3},\sqrt{5},5$
C
$2,\sqrt{5},5$
D
$\sqrt{2},2\sqrt{2},3\sqrt{2}$
Question 5:
Which set of numbers forms a right-angled triangle?
A
$2\sqrt{10},3\sqrt{3},3$
B
$3\sqrt{2},2\sqrt{3},2\sqrt{2}$
C
$2\sqrt{7},2\sqrt{6},\sqrt{5}$
D
$3\sqrt{5},2\sqrt{5},5$
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