Law of Cosines and Heron's Formula

Using Heron's Formula, find the Area.

• 49.6 mi²

• 75 mi²

• 50.8 mi²

• 100 mi²

Find the Semiperimeter.

• 35.4

• 17.7

• 11.8

• 70.8

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

Which option is INCORRECT ?

Heron's Formula is used to find the area of triangle when

• Three sides are given

• Two sides & perimeter is given

• Height is given

• Two sides & semi perimeter is given

Find the area of the given Triangle

• 4 sq.m

• 5 sq.m

• 6 sq.m

• 7 sq.m