Question

PLZ HELP I BEG

*The length of the shorter altitude and the shorter side of parallelogram are 9cm and √82 cm. The length of a longer diagonal is 15 cm. What is the area of this parallelogram?

Answer 1

Pythagorean theorem(√82)^2 = 9^2 + x^2

x = 1 cm

15^2 = 9^2 + y^2

y = 12 cm. 

12-1 = 11

Area = 9*11 = 99 cm^2