Triangles - Normal

Question 1: Find

α

A

α = 90^{\circ}

B

α = 95^{\circ}

C

α = 85^{\circ}

D

α = 80^{\circ}

Question 2: Find

α

A

α = 57^{\circ}

B

α = 66^{\circ}

C

α = 68^{\circ}

D

α = 33^{\circ}

Question 3: Find the area of a triangle:

A

24 c m

B

72 c m^{2}

C

48 c m^{2}

D

96 c m^{2}

Question 4: Which sets of numbers are side lengths of a triangle?

A

2, 2, 4

B

5, 6, 7

C

5, 8, 15

D

4, 7, 12

Question 5: Find the area of the triangle:

A

67.5 c m^{2}

B

120 c m^{2}

C

90 c m^{2}

D

135 c m^{2}

Question 6: Find the length of the side

a

A

a = 5 c m

B

a = 4.5 c m

C

a = 3 c m

D

a = 4 c m

Question 7: Find

α

A

α = 30^{\circ}

B

α = 60^{\circ}

C

α = 75^{\circ}

D

α = 45^{\circ}

Question 8: Find the length of the diagonal

d

A

d = 8 c m

B

d = 14 c m

C

d = 12 c m

D

d = 10 c m

Question 9: Which of the below triangles is acute?

A

B

C

D

Question 10: Which of the below triangles is equilateral?

A

B

C

D

Test: Triangles - Normal

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