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Chapter 8: Q. 15 (page 541)

In the given question find the area of the triangle. Round the answers to two decimal places.

b=1,c=3,A=80°

Short Answer

Expert verified

Required area of the triangle is1.48squareunits

Step by step solution

01

Step 1. Given information

From the given triangle we can find the area of the triangle by the following formula:

Area=12×b×c×sinA

02

Step 2. Calculation

Fromtheabovefigure,theareaofthetriangleis:

Area=12×b×c×sinA

Given,b=1,c=3,A=80°Area=12×1×3×sin80°=1.5×sin80°=1.5×0.9848=1.4772≈1.48squareunits

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