Test:
Triangles - Challenging
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Question 1:
Find
α
A
α
=
60
∘
B
α
=
75
∘
C
α
=
90
∘
D
α
=
80
∘
Question 2:
Find the height of a triangle where
a
=
6
c
m
A
3
B
3
2
C
3
3
D
6
Question 3:
Find the area:
A
22.5
c
m
2
B
20
c
m
2
C
25
c
m
2
D
17.5
c
m
2
Question 4:
Which set of numbers is the side lengths of a triangle?
A
2
,
2
2
,
3
2
B
3
,
5
,
5
C
2
3
,
3
2
,
7
D
2
,
5
,
5
Question 5:
Which set of numbers forms a right-angled triangle?
A
3
5
,
2
5
,
5
B
2
7
,
2
6
,
5
C
3
2
,
2
3
,
2
2
D
2
10
,
3
3
,
3
Question 6:
Which set of numbers forms a right-angled triangle?
A
7
,
5
,
3
2
B
8
,
2
10
,
2
6
C
2
15
,
6
,
2
7
D
4
2
,
3
3
,
2
14
Question 7:
What is a side length of an equilateral triangle with the height equal to
3
c
m
A
2
3
c
m
B
6
c
m
C
2
c
m
D
3
c
m
Question 8:
Find the perimeter of a square where the diagonal is equal to
5
6
c
m
A
20
3
c
m
B
40
3
c
m
C
75
c
m
D
44
c
m
Question 9:
Find the area of a trapezium:
A
55
c
m
2
B
40
c
m
2
C
50
c
m
2
D
44
c
m
2
Question 10:
Find the area of an inscribed triangle, where the radius of a circle is equal to
8
c
m
A
60
3
c
m
2
B
81
c
m
2
C
36
c
m
2
D
64
c
m
2
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