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WorksheetsTrig-Area of Triangles
Total questions: 16
Worksheet time: 1hrs 20mins
Find the area of ABC to the nearest tenth.
62.3 units2
124.6 units2
77.0 units2
100 units2
Find the area of ΔABC
if a = 9cm, b = 11cm, c = 16cm
52.1 sq cm
89.5 sq cm
47.6 sq cm
15.2 sq cm
Find Area of ABC
223.6 units2
73.1 units2
52.7 units2
3.3 units2
What is the area of a triangle with two sides that measure 6 m and 8 m with an included angle of 137°?
17.8m²
14.6m²
16.4m²
12.9m²
What is the area of a triangle with two sides that measure 5 cm and 8 cm with an included angle of 39°?
15.9cm²
12.6cm²
15.3cm²
16.2cm²
If the sides of a triangle are 8, 8, and 8, what is the area?
8
15.58
27.71
62.91
If the sides of a triangle are 3, 4, and 5, what is the area?
6
6.28
12
3.14159
Which formula would you use?
Law of Sines
Law of Cosines
A=.5bcsinA
Herons
Which formula would you use?
Law of Sines
Law of Cosines
Herons
A=.5acsinB
Find the area:
104.5 units²
120 units²
80.5 units²
2400 units²
What is this Triangle's area?
8.0
17.9
80.0
8.97
Which area formula works for this triangle?
½(5)(7)cos(49⁰)
(5)(7)sin(49⁰)
½(5)(7)sin(49⁰)
all of these
If the sides of a triangle are 12,5, and 2. What is the area?
12
40.65
19
This triangle does not exist
