Question

The area of a cyclic quadrilateral whose sides measure 15 cm 24 cm 7 cm and 20 cm is....​

Answer 1

a  = 15 cm

b = 24 cm

c = 7 cm

d = 20 cm

s = 1/2.K

s = 1/2(a + b + c + d)

s = 1/2(15 + 24 + 7 + 20)

s = 1/2(66)

s = 33 cm

Luas

= √(s - a)(s - b)(s - c)(s - d)

= √(33 - 15)(33 - 24)(33 - 7)(33 - 20)

= √(18 x 9 x 26 x 13)

= √54.756

= 234 cm²