Find the area of the triangle whose perimeter is 180 cm and two sides are 80 cm and 18 cm. Calculate the altitude of the triangle corresponding to the shortest side.
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80+18+third side=180
180-98=third side
82=third side
by Pythagoras theorem
18/2)²+ height²= 80²
9²+ height²=1600
height²=1600-81
height=7√31
area =1/2*7√31*9
175.3884577
hhope it will be the right answer
180-98=third side
82=third side
by Pythagoras theorem
18/2)²+ height²= 80²
9²+ height²=1600
height²=1600-81
height=7√31
area =1/2*7√31*9
175.3884577
hhope it will be the right answer
honey19011:
your welcome dear
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