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Andru [333]
4 years ago
9

Trigonometric area formula: Area = What is the area of triangle PQR? Round to the nearest tenth of a square unit. 70.5 square un

its 111.3 square units 185.4 square units 222.5 square units

Mathematics
2 answers:
larisa [96]4 years ago
8 0

Answer:

111.3 square units

Step-by-step explanation:

Natalija [7]4 years ago
3 0
The complete question in the attached figure

we know that
When we know <span>two sides and the included angle the formula for calculate the area is
</span>Area=(1/2)*a*b*sin C
in this problem
let
a=20
b=12
C=68°
Area=(1/2)*20*12*sin 68°------> Area=111.26 units²-----> Area=111.3 units²

the answer is
111.3 units²

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