Herons Formula - Grade 9 (Question: 1605715309)
The base of an isosceles triangle is 5 more than the length of one of the equal sides. If its semi perimeter is 22, what is the area of the isosceles triangle ?
A. 84.43 square cm
B. 71.99 square cm
C. 59.35 square cm
D. 69.65 square cm