area of a triangle having sides as 8,11and perimeter 32

Question

anonymous · Answer

dw:1351316088010:dw|$$P=s_1+s_2+s_3~~~\implies~~~32=8+11+s_3~~~\implies~~~s_3=13$$|dw:1351316251967:dw|$$A={1\over2}bh$$$now~just~plug~in~the~base~and~height~and~solve!~ :)$

anonymous · Answer

WHERE IS THE HEIGHT ?

anonymous · Answer

what level math is this question?

anonymous · Answer

10TH GRADE

anonymous · Answer

geometry or algebra 1 or 2...?

anonymous · Answer

GEOMETRY

anonymous · Answer

okay well i frgt which theorem but there is one that tells you how to find the altitude of a triangle...that should tell you what the height is

anonymous · Answer

WELL I HAVE ANOTHER QUESTION THE QUESTION IS IF THE DIAMETER OF A SPHERE IS INCREASED BY 25%,THEN BY WHAT PERCENT ITS CURVED SURFACE AREA WOULD DECREASE?
A)43.75
B)50
C)37
D)NONE OF THESE