Question

Find the area of triangle whose vertices are (1,-1) (-4,6) and (-3,-5)

Answer 1

use 1/2{x1(y2-y3)+x2(y3-y1)+X3(y1-y2)}

now substitute values

Answer 2

$\huge \bold {\mathfrak {hey}}$

See pic for diagram

Now find area

Formula :-

Area of triangle = 1/2 × b × h

Base = 10 ( see in pic)

Height = 4 ( see in pic)

Put values in formula = 1/2 × 10 × 4

Area of triangle = 20

Therefore, area of triangle is 20 cm

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HOPE IT WILL HELP YOU

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