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AC= 8 units
AB= 4 units
BC= √ (X2-X1)² +(Y2-Y1)²
BC= √(0-4)²+(1-9)²
BC= 16+64
BC= √80
Perimeter= 8+4+√80
=21 units
Area= bh/2
Area= 4x8/2
=16 square units
d=√(X2-X1)²+(Y2-Y1)²
AB= √(4=2)²+(4-7)²
= √45
BC= √(2-4)²+(0-4)²
= √20
Area=lxw
= √20 x √45
=30 square units
P= √45+√45+√20+√20
=22.4 units
XY= √(-4+3)²+(2-4)²
= √1+4
=√5
C= 2πr
=14.0 units
A= πr²
=15.7 square units
HG= √(3-1)²+(-1+3)²
HG= √(2)²+(2)²
HG= √8
P= √8+√8+√8+√8
=11.3
Area= SxS
=√8 x √8
=8 square units
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